Terms of Service
Note: In case of discrepancy, the Japanese version prevails.
Operator: LostSOS Concierge (Representative: Natsuki Nedachi) (the "Company")
Address: N&E BLD. 6F, 1-12-4 Ginza, Chuo-ku, Tokyo 104-0061, Japan
Contact: support@lost-sos.com Office Hours (Inquiries): 10:00–18:00 Japan Time (JST), excluding weekends and Japanese national holidays
Note: This English version is provided for convenience only. In the event of any discrepancy between the Japanese and English versions, the Japanese version shall prevail.
Last Updated: December 8, 2025
Article 1 (Application)
1. These Terms of Service (the "Terms") set forth the conditions for using the service provided by the Company, which consists of searching for, contacting relevant parties, arranging recovery, and arranging shipping of lost items (with proxy receipt/collection permitted only when a power of attorney is provided) (the "Service").
2. Users (as defined in Article 2) shall use the Service only after agreeing to these Terms.
Article 2 (Definitions)
In these Terms, the following terms shall have the meanings set forth below:
1. "User": An individual or entity that agrees to these Terms and applies for and uses the Service.
2. "Request": A request by the User to the Company to provide the Service.
3. "Covered Item(s)": Items that the User has lost, left behind, or mistakenly taken/received, and that are eligible for the Service.
4. "Actual Costs": Costs necessary for providing the Service (e.g., domestic/international shipping fees, transportation expenses, storage fees, packing materials, fees required for proxy receipt/collection, call charges, translation/interpreting fees, insurance premiums, etc.) that may arise separately from any success fee or fixed fee.
5. "International Shipping": Shipping to an address outside Japan via a carrier (including DHL/FedEx/UPS, etc.).
6. "Domestic Shipping": Shipping to an address within Japan via a carrier, etc.
7. "Success": The status in which the success conditions set forth in Article 8 are met.
8. "Partial Success": The status set forth in Article 9, in which the result does not qualify as Success but certain outcomes are achieved.
9. "Service Hours": The hours during which the Company accepts and responds to lost-item search requests (in principle, 8:00–22:00 JST, 365 days a year). Details will be posted on the Company's website.
10. "Office Hours": The hours during which the Company accepts general inquiries (including inquiries regarding these Terms and personal information) (in principle, 10:00–18:00 JST, excluding weekends and Japanese national holidays).
Article 3 (Service Description)
1. Based on the User's Request, the Company will primarily make inquiries and contact railways, bus/taxi companies, accommodation providers, airports, tourist facilities, the police, and other related organizations (collectively, "Related Organizations") within Japan, and will arrange, as applicable, confirmation of the location of the Covered Item(s), recovery arrangements, storage arrangements, and shipping arrangements.
2. The Service does not guarantee the discovery, return, or delivery of any Covered Item(s). Depending on the rules or decisions of Related Organizations, storage periods, identity verification requirements, shipping restrictions, customs clearance, and other circumstances, the Company may be unable to provide the Service.
3. Reissuance procedures for passports and similar documents are outside the scope of the Service. Whether reissuance is possible, the required documents, and any in-person appearance requirements are determined by the relevant embassy/consulate. The Company may search for, inquire about, recover, and arrange handover of a passport, but does not act as an agent for the reissuance itself.
4. The Company may use external partners (recovery agents, operators, shipping providers, etc.) as necessary to provide the Service.
Article 4 (Covered Items / Exclusions)
1. In principle, the Covered Items are as follows: * Core: Passport/various IDs, wallet, smartphone, camera, PC/tablet, suitcase * Options (e.g., individual quotation): Luxury goods, storage media, keys, important documents, etc.
2. In principle, the following items are excluded, and the Company may only provide self-help guidance: * Daily necessities, low-priced miscellaneous items, souvenirs, etc. (unless otherwise approved by the Company)
3. Even if an item is a Covered Item, the Company may refuse or suspend acceptance of the Request if the item is a hazardous/illegal item, is prohibited or restricted from shipping by carriers or laws/regulations, or if the Company reasonably suspects fraud or other risks.
Article 5 (Service Area)
The Service area covers all of Japan. However, for remote areas, islands, extremely urgent situations, etc., additional costs or exceptions to timing may apply (to be presented on the application screen or explained in advance).
Article 6 (Application / Contract Formation)
1. The User applies for the Service through the Company's prescribed method (form, chat, etc.).
2. A contract for the Service is formed when the User agrees to these Terms and related terms by the Company's prescribed method (e.g., checking a checkbox or clicking a button on the Company's website; an explicit response via a chat channel designated by the Company; or any other method designated by the Company), and the Company sends an Acceptance Confirmation Notice.
3. Automatic acknowledgement messages from the Company (e.g., receipt confirmation) do not constitute an Acceptance Confirmation Notice, and do not guarantee contract formation or commencement of work.
4. If the application content is incomplete, the Company may request additional information and may withhold commencement until such information is provided. In such case, SLA and other time counting shall be suspended.
5. Users must, in principle, be 18 years of age or older. Minors must apply and agree through a legal guardian.
Article 7 (Identity Verification / Power of Attorney)
1. The Company may request identity verification (KYC) depending on the nature of the Covered Item(s): * Passports/IDs: Identity verification required (photo ID + selfie, etc.) * Smartphones/PCs: Proof of purchase, IMEI, etc., where possible * Low-risk items: Simplified verification
2. If the Company performs proxy receipt/collection from Related Organizations, the User shall submit a power of attorney in the format designated by the Company.
3. If the User does not comply with identity verification or submission of a power of attorney, the Company may refuse or suspend acceptance of the Request.
Article 8 (Definition of Success)
1. For Requests involving International Shipping, "Success" occurs when the Company recovers (or arranges recovery of) the Covered Item(s), hands them over to an international carrier, and a tracking number is issued.
2. For domestic matters (handover within Japan / Domestic Shipping), Success shall be one of the following depending on the plan (as displayed on the application screen): (1) When the item is handed over to a domestic carrier and a tracking number is issued; or (2) When handover to the User or the User's designated recipient is completed in the agreed manner.
3. For plans primarily consisting of reporting (e.g., "Free Assessment"), the definition of Success does not apply, and the Service is deemed completed when the Company provides the prescribed investigation/report.
Article 9 (Partial Success)
1. The Company may treat a case as "Partial Success" when certain outcomes are achieved even if Success is not reached, such as: * The location is identified, but proxy receipt/collection is not permitted due to rules of Related Organizations * International Shipping is not possible due to prohibited/restricted items, and an alternative (Domestic Shipping, handover to an embassy, etc.) is used * Final arrangements cannot be completed due to User reasons (unreachable, refusal to receive, etc.)
2. Partial Success has two stages: * Stage A (Discovery Confirmed): The location is identified and recovery is possible * Stage B (Recovery Completed): The Company has recovered the item, but cannot ship it The Company may charge the prescribed Partial Success Fee for each stage.
3. When charging a Partial Success Fee, the Company will endeavor to explain the situation and obtain the User's approval. Approval shall be obtained by the Company's prescribed method (including explicit acceptance via chat). If approval is not obtained, the Company may terminate the Request (if Actual Costs have been incurred, Article 11 shall apply).
The applicable Partial Success Fee amount will be presented to you in advance, and no Partial Success Fee will be charged unless you approve it.
Article 10 (Fees / Plans)
1. Fees for the Service are displayed on the application screen or pricing page. Fees are, in principle, charged per case and per item.
2. "One case" means a single loss incident (same day, same route, same facility, etc.) within a range where contact destinations are generally the same. "One item" means an item requiring separate handling for recovery, identity verification, and shipping (e.g., passport, smartphone).
3. If multiple items are requested within the same case, additional-item pricing (with discounts) applies from the second item onward. Losses occurring across different locations or dates are treated as separate cases.
4. Reference pricing: Free Assessment (JPY 0) / Standard (JPY 24,800–39,800) / Pro (JPY 34,800–49,800). Pricing may vary depending on the Covered Item(s) and circumstances.
5. For success-fee plans (Standard/Pro), the success fee is, in principle, determined upon Success (Article 8).
6. The Company may propose additional fees or revised conditions for remote areas, islands, extremely urgent cases, high-risk cases, etc.
Article 11 (Payments / Actual Costs)
1. Users shall pay by methods designated by the Company (credit card, etc.).
2. The Company may request payment from the User by methods designated by the Company (payment link, portal display, chat notification, etc.) at a stage where Success or Partial Success is expected, or where Actual Costs are expected to arise due to recovery, storage, shipping, etc.
3. The User shall make payment by the deadline separately designated by the Company. If payment is not confirmed, the Company may withhold or suspend recovery, shipping, handover, or other arrangements, and may terminate the Request.
4. If storage extension, return shipment, re-arrangement, etc. becomes necessary due to delayed payment, such costs shall be borne by the User.
5. In principle, Actual Costs will be estimated in advance, and after the User approves, the Company will advance payment and later settle/charge.
6. The maximum amount of Actual Costs the Company may advance without prior approval is JPY 10,000 (tax included) per case. If Actual Costs are expected to exceed this amount, the Company will request prior approval.
7. Customs duties, import taxes, customs clearance fees, etc. are, in principle, borne by the recipient (the User).
8. The Company's fees (success fee, etc.) are consideration for the lost-item search service and are separate from any reward paid to the finder.
9. Under Japan's Lost Property Act, the finder (a third party who discovered and delivered the lost item) may have the right to claim a reward (typically 5%–20% of the item's value). If the finder exercises this right, the User must bear such reward in addition to the Company's fees. If the Company pays the reward on the User's behalf, it will be settled as Actual Costs. This finder's reward may be an additional cost separate from our fees, and we will notify you if it applies.
Article 12 (Search Period / Cancellation / Refunds)
1. The following are guideline search periods (active search periods) for each plan: * Standard: in principle, 7 calendar days * Pro: in principle, 14 calendar days The Company will make inquiries and follow-ups to major candidates within the search period, and will close the case with a final report at the end of the period.
2. The Company may close a Request before the end of the search period if: * "No match" is confirmed at all major candidates * Tracking becomes difficult due to expiration of storage period, disposal, transfer, etc. * The User is unreachable for 48 hours or more, or does not provide necessary information * The Request is found to involve prohibited items or high-risk matters * Payment is not confirmed within a reasonable period after the Company requests payment * Identity verification, power of attorney, etc. requested by the Company are not submitted and procedures do not proceed within a reasonable period
3. After closure, if the User provides new material information (receipt number, seat number, hotel reservation name, etc.), the Company may consider reopening as a paid extension option.
4. In these Terms, "Commencement" means the time when any of the following occurs: * The Company reviews the case and finalizes an individual response policy * The Company generates an individualized document package such as a power of attorney * The Company makes at least one external inquiry to a Related Organization (by phone, email, web form, etc.) Sending only an automatic acknowledgement message does not constitute Commencement.
5. The User may cancel the Request before Commencement. Before Commencement, only card information registration has been performed and no charge has been made, so no charges will arise upon cancellation.
6. After Commencement, for success-fee plans, the success fee arises only upon Success.
7. If the Request is suspended or terminated due to User reasons, the Company may settle and charge, depending on progress, (i) Actual Costs and (ii) Partial Success Fee (if applicable).
8. If the Company cannot accept or continue the Request due to Company reasons (capacity, system failure, erroneous acceptance, etc.), in principle the Company will refund the full amount if before Commencement. Even after Commencement, if no external inquiries have been made at all, the Company will, in principle, refund the amount for the purpose of maintaining trust.
Article 13 (SLA / Communications)
1. The Company will attempt initial contact to major Related Organizations within the following time after sending the Acceptance Confirmation Notice: * Standard: in principle, within 12 hours * Pro: in principle, within 6 hours
2. SLA time counting begins when the Company sends the Acceptance Confirmation Notice, the User's consent procedures are completed, and the necessary information is available.
3. "Initial contact" means the point at which the Company first attempts an inquiry to major Related Organizations via available means (phone, email, web form, etc.).
4. The SLA may be excluded or extended due to circumstances beyond the Company's reasonable control, such as late-night hours, holidays, disasters, system failures, Related Organizations' business hours, communication outages, etc.
5. If the Company fails to meet the SLA due to reasons attributable to the Company, the Company will respond as follows: * Standard: JPY 5,000 will be discounted from the success fee (applicable only upon Success). * Pro: The difference for the Pro express priority slot (JPY 10,000) will be refunded, and the plan will automatically be converted to Standard under the same conditions.
6. Official communications will, in principle, be unified to one channel designated by the User (WhatsApp/LINE/WeChat/email, etc.). The Company may retain communication logs for evidentiary purposes.
Article 14 (AI/Automation / Calls / Recording)
1. For efficiency and quality improvement, the Company may use AI or automation tools for translation, summarization, drafting inquiry messages, outbound calling, etc.
2. For quality control and evidentiary purposes, the Company may record and keep records of call contents by the Company or external partners.
Article 15 (Recovery / Storage)
1. If the Company recovers the Covered Item(s), the Company may store them temporarily at the Company's premises or a location designated by the Company until shipping or handover.
2. Storage periods are, in principle, as follows from the date of recovery: * General items (smartphones, cameras, etc.): up to 30 days * Sensitive items (passports, IDs, wallets, etc.): up to 14 days * High-value items (items with a high declared value): up to 14 days (extensions require a paid option and continued insurance coverage)
3. If handover cannot be completed due to the User being unreachable, refusal to receive, incomplete required procedures, etc., the Company may, to the extent possible after prior notice, take measures such as return shipment, disposal, or handover to the police, etc. For official documents such as passports, the Company may hand them over to the competent authority (embassy/consulate, etc.). Costs for such measures shall be borne by the User.
4. The Company may visually inspect the Covered Item(s) to the extent necessary for handover/shipping, but will not unlawfully access data inside digital devices.
5. The Company provides the following coverage for items during storage: * Standard coverage: Included in the fee; compensation for loss/damage during storage up to JPY 100,000 * High-value coverage: Optional additional insurance based on declared value (required for high-value items) * Cash is not covered: If a wallet contains cash, the Company will not verify or certify the amount, and will not compensate for loss/theft of cash. For high-value items, additional insurance may be required (and may be mandatory) based on the declared value.
6. For digital devices such as smartphones and PCs, the Company will not, in principle, unlock devices, recover data, review contents, or guarantee operation. The Company assumes no responsibility for loss or corruption of data.
Article 16 (International Shipping / Customs)
1. Whether shipping is possible is subject to laws, each country's regulations, carriers' terms of carriage and dangerous goods rules, etc. If shipping is difficult, the Company will propose alternatives (domestic address, storage, handover to Related Organizations, etc.).
2. The User shall provide truthful and accurate declared information (item description, value, etc.) and cooperate with customs-related procedures.
3. If customs delays, seizures, import refusals, etc. occur, the Company will provide reasonable support, but shall not be responsible for such outcomes (except in cases of the Company's willful misconduct or gross negligence).
4. Where the Company arranges shipping with a carrier at the User's request, the Company will be the shipper under the shipping contract, but compensation for loss/damage in transit will be governed by the carrier's terms of carriage. The Company does not provide compensation beyond the scope of the carrier's terms.
5. If the User wishes to apply shipping insurance, the User must accurately declare the item value and select the optional additional insurance. No compensation will be provided beyond the declared value.
Article 17 (Prohibited Conduct / Fraud Response)
Users shall not:
1. Provide false information, impersonate others, or request the Service without being the rightful owner/authorized person.
2. Make requests involving illegal goods, hazardous goods, stolen goods, etc.
3. Demand that the Company engage in acts that violate rules of Related Organizations or laws/regulations.
If the Company reasonably suspects fraud, the Company may require additional identity verification, suspend the Request, or terminate the contract.
Article 18 (Third-Party Services)
1. The Service may depend on third-party services such as payment (Stripe, etc.), chat services (WhatsApp, LINE, WeChat, etc.), and carriers. The User agrees to receive communications through chat services designated by the Company.
2. Due to third-party services' specifications, suspension, outages, delays, non-delivery, usage restrictions, etc., part of the Service may not be provided, or the Company's notifications may be delayed or not delivered. The Company will attempt notifications via alternative methods (portal display, email, etc.) to the extent reasonably possible.
3. Use of third-party services is subject to the terms of service and privacy policies of each service.
Article 19 (Disclaimer / Limitation of Liability)
1. Unless attributable to the Company, the Company shall not be liable for damages suffered by the User arising from: (1) Decisions, rules, identity verification procedures, storage periods, or refusal of handover/shipping by police, railways, accommodations, facility managers, embassies/consulates, or other Related Organizations (2) Acts or omissions of carriers, customs authorities, or other third parties (including shipping delays, shipping incidents, customs delays, seizure/confiscation, etc.) (3) Force majeure such as natural disasters, accidents, war, terrorism, labor disputes, communication failures, etc. (4) User-attributable causes such as incorrect/insufficient information provided by the User, defective identity verification documents, unreachability, delayed instructions, etc.
2. If the Company is liable for damages due to negligence excluding gross negligence, such liability shall be limited to direct and ordinary damages only, and shall not include lost profits, opportunity losses, loss of data, business losses, mental distress, or other indirect/special damages.
3. In such case, the Company's maximum liability shall be limited to the service fees actually paid by the User for the relevant Request (including start fees, success fees, handling fees, etc.). However, Actual Costs to be paid by the Company to third parties on behalf of the User (international shipping fees, customs duties and taxes, and other public charges) shall be governed separately by these Terms or individual agreement.
4. If damages are caused by the Company's willful misconduct or gross negligence, the limitations in paragraphs 2 and 3 shall not apply.
5. These Terms do not restrict any mandatory consumer protection rights that may be granted to the User under applicable laws.
Article 20 (Governing Law / Jurisdiction)
1. These Terms shall be governed by and construed in accordance with the laws of Japan.
2. If a dispute arises regarding the Service, the Company and the User shall first consult in good faith. If unresolved, the Tokyo District Court (including the Summary Court, as applicable) shall have exclusive agreed jurisdiction as the court of first instance.
Article 21 (Amendments to the Terms)
1. The Company may amend these Terms. For material changes, the Company will provide advance notice on the Company's website or by other appropriate means.
2. For Requests already applied for, the Terms in effect at the time of application shall apply in principle (unless otherwise required by law).
Article 22 (Security / Anti-Fraud Measures)
The Company will not request the User to provide sensitive information such as credit card numbers, bank account login credentials, or one-time passwords via chat. If you receive any message requesting such information, it may not be an official communication from the Company. Please contact the Company promptly for verification.