This is a reference translation. The Korean version is the governing text; if the two differ, the Korean version prevails.

REGNA payment, withdrawal and refund policy

Effective: 18 August 2026 Last revised: 18 August 2026

This policy sets out the rules on payment, withdrawal of subscription, termination and refunds for paid use of REGNA (the “Service”), provided by TailgateLab (the “Company”). Anything not covered here follows the REGNA terms of service and applicable Korean law, including the Act on Consumer Protection in Electronic Commerce and the Content Industry Promotion Act.

Article 1 (Plans and payment)

  1. The Service is offered as the following plans. Prices shown include value-added tax (VAT).
    • Basic: free. Regulatory questions and answers, review of one attached document, and the document redaction tool. Monthly credits and a daily question limit apply.
    • Advanced: KRW 99,000 per month. Everything in Basic, plus technical file drafting and review, test report review, regulatory change analyses, the Thinking model (up to five attachments) and 2,000 credits a month.
  2. A paid plan is a one-month pass paid by credit card. Each payment is a single charge for that period.
  3. When the period ends the Service does not renew automatically. To continue, pay again before it expires. There is no recurring billing, so you will not be charged unintentionally.
  4. The plan activates as soon as payment completes, and the start date is the date of payment.
  5. The Company does not raise the price of a paid plan without prior notice. Any price change is announced in the Service or by email at least 30 days beforehand.

Article 2 (Withdrawal of subscription)

  1. You may withdraw your subscription within 7 days of the later of the payment date and the start date.
  2. A payment is refunded in full if no paid feature has been used within that period.
  3. Withdrawal may be restricted in the following cases, which the Company discloses on the payment screen beforehand.
    • You have substantially used paid features (technical file drafting and review, test report review, Thinking model questions and the like) so that their value has materially decreased.
    • Output generated individually for you (review results, drafts and the like) has already been delivered.
  4. Even where withdrawal is restricted, the Company refunds the remaining portion under the termination rules in Article 3.

Article 3 (Termination during a period, and refunds)

  1. If you terminate after the withdrawal period, or after using some paid features, the refund is calculated as follows.
    • Termination within 7 days of the start date: the amount corresponding to the credits used (as a proportion of the monthly credits) is deducted from the payment, and the remaining days are refunded pro rata.
    • Termination after 7 days: the current month is not refunded.
  2. Credits, promotions and trial periods given free of charge are excluded from refunds.
  3. Credits included in a plan are valid only within that period. Unused credits do not carry over and are not refunded.

Article 4 (Refunds for failures attributable to the Company)

If the Service is seriously or continuously unavailable (24 hours or more without interruption) through the Company's fault and you are therefore unable to use it normally, you may request a refund of the fee for that period or an extension of the period. This does not apply to scheduled maintenance announced in advance, force majeure, causes on your side, or failures of third-party services (telecommunications, cloud hosting, external AI model providers and the like).

Article 5 (How refunds are made, and how long they take)

  1. A refund is made, as a rule, to the payment method used for the original payment. Where that is not possible it may be paid to an account you nominate.
  2. The Company begins the refund within 3 business days of the refund being confirmed. Depending on the card issuer and the payment gateway, it may take additional days to appear.
  3. Send refund requests to the contact below. The Company will confirm the details and tell you whether a refund applies and for how much.

Article 6 (Your data after termination)

After a paid plan ends, your account and conversation history remain under the free plan, and you may delete your account at any time. The Company does not keep your original documents on its servers (the redaction tool stores only a file hash and the positions redacted), and on deletion of an account everything is destroyed without delay except information the Company is required by law to retain.

Article 7 (Contact and business details)

Addendum

This policy takes effect on 18 August 2026.