HanFlow AI Refund Policy

• Effective date: May 25, 2026 · Last revised: July 21, 2026 (English version published July 22, 2026)
• Operator: Quantum Materials Co., Ltd. (CEO: Hwan-Yeol Park · Business Registration No. 734-88-03845 · E-commerce Registration No. 2026-Chungnam-Asan-0713)
• Address: B410, Industry-Academic Cooperation Building, 22-7 Soonchunhyang-ro, Sinchang-myeon, Asan-si, Chungcheongnam-do, Republic of Korea
• Contact: In-service Billing → Payment history → Request refund / info@qmscience.net / +82-70-7609-1376

This policy is written in compliance with the Act on Consumer Protection in Electronic Commerce ("E-commerce Act") and the Content Industry Promotion Act of Korea. This English translation is provided for convenience; in case of conflict, the Korean version (hanflowai.com/refund) prevails to the extent permitted by applicable law.

International payments: purchases made through international checkout are processed by Paddle.com Market Ltd as Merchant of Record. Refunds for such purchases are handled according to this policy and may be executed through Paddle; you may also contact us at info@qmscience.net and we will process the refund with Paddle on your behalf. Nothing in this policy limits mandatory consumer rights in your country of residence.

Article 1 (Scope)

This policy applies to paid transactions in HanFlow AI — subscription plans (Starter/Pro/Business/Enterprise, monthly or yearly) and credit top-up packs. The free plan and free-of-charge credits are not refundable.

Article 2 (Withdrawal — Full Refund Within 7 Days, Unused)

1. A full refund is provided if requested within 7 days of payment and none of the credits granted by that payment have been used.
2. "Used" means one or more credits granted by the payment were deducted (including reserve/hold followed by settlement).
3. How to request: in-service "Payment history → Request refund", or info@qmscience.net.
4. The Company processes refunds within 3 business days; depending on the payment method, the card network or bank may take an additional 1–7 days.

Article 3 (Limits on Withdrawal)

Under Article 17(2) of the E-commerce Act, withdrawal may be limited in the following cases, which the Company discloses in advance on the checkout screen and in this policy:

1. More than 7 days have passed since payment (mid-term cancellation refunds under Articles 4–5 still apply)
2. Digital content (AI output) has begun to be provided using the granted credits — withdrawal is limited for the used portion
3. The account was suspended for a violation of the Terms (prohibited conduct)

However, where usage is negligible or the cause is attributable to the Company (e.g., a service failure), the Company will consider a partial refund to protect users' interests.

Article 4 (Mid-Term Refund — Monthly Subscription)

1. Monthly subscriptions grant the month's credits in a lump sum at payment. For mid-term cancellation with refund:
   • Refund = payment amount × (remaining credits ÷ credits granted by the payment) (fractions truncated)
   • Bonus/free credits are excluded from both "credits granted" and "remaining credits" in the formula.
2. If you only cancel (no refund request), already-granted credits remain usable until their validity ends (1 month), and no further payments are charged from the next billing date.

Article 5 (Mid-Term Refund — Yearly Subscription)

1. Yearly subscriptions charge a discounted annual fee once and grant 12 months of credits in a lump sum (valid 1 year).
2. Cancellation within 30 days of payment: refund by the credit-ratio formula in Article 4(1).
3. Cancellation after 30 days: the refund equals the payment amount minus used credits recalculated at the regular monthly price (the yearly discount is conditional on completing the term). If the recalculated deduction exceeds the payment amount, the refund is zero.

Article 6 (Credit Top-Up Packs)

1. Top-up packs are fully refundable within 7 days of payment if unused (Article 2).
2. If partially used: Refund = payment amount × (remaining paid credits ÷ paid credits granted). Bonus credits (+10–50%) are free-of-charge and excluded from the calculation; remaining bonus credits are forfeited upon refund.
3. Top-up credits are valid for 1 year; expired credits are not refundable.

Article 7 (Refunds Attributable to the Company)

In the following cases, a full or pro-rated refund is provided regardless of usage:

1. Continuous service outage of 24 hours or more
2. A material defect in a core feature stated in the Terms that prevents normal use
3. Unilateral termination of the Service by the Company
4. Credits deducted for a failed or erroneous generation (the credits for that job are returned)

Article 8 (Non-Refundable Items)

1. Free-plan usage
2. Credits granted free of charge (sign-up, referral, promotions, events) and top-up bonus credits
3. Credits that expired at the end of their validity period
4. Items under a separate refund arrangement in an Enterprise contract (that arrangement prevails)

Article 9 (Refund Procedure)

1. Request: in-service "Payment history → Request refund" or info@qmscience.net
2. Review: usage check and reply within 1–2 business days
3. Processing: cancellation/refund executed within 3 business days of approval
4. Arrival: card reversal (2–5 days) or bank transfer (1–3 days), depending on the payment method; international refunds via Paddle follow Paddle's processing schedule

Article 10 (Dispute Resolution)

For refund disputes you may apply for mediation with the Korea Consumer Agency (1372, www.kca.go.kr) or the Electronic Documents & Transactions Dispute Mediation Committee (www.ecmc.or.kr). Mandatory consumer-protection rules of your country of residence remain unaffected where they apply by law.

Addendum

1. This policy took effect on May 25, 2026.
2. Revised July 21, 2026: refund formulas rebased on credit ratios to match the current billing structure (plan names, lump-sum credit grants, top-up packs), and refund of credits for failed generations was codified.
3. English version published July 22, 2026, including the international payment (Paddle, Merchant of Record) provisions.