Billing and Refunds Policy

Billing Policy— Plan Changes, Refunds & Cancellation

Definitions

  • Monthly list price: the plan's regular monthly price.

  • Annual payment: the plan's discounted annual total (up to 16% off).

  • Monthly-equivalent discounted price: Annual payment ÷ 12.

  • Monthly credit grant: credits included with your plan each month (annual plans: annual grant ÷ 12).

  • Credit unit price: plan payment ÷ credit grant. Monthly = Monthly list price ÷ Monthly credit grant. Annual = Annual payment ÷ Annual credit grant.

  • Balance: unused credits in the current plan at the time of change or cancellation.

  • Months used: elapsed months, including the current month.

  • Months remaining: 12 − Months used.

  • Discount clawback: (Monthly list price − Monthly-equivalent discounted price) × Months used. Recovers the annual discount already received.

  • Refill grant: upper plan's Monthly credit grant − Balance.

  • Difference grant: upper plan's Monthly credit grant − current plan's Monthly credit grant.

  • Usage history: 1 or more credits deducted (at least one successful model call). Simply logging in does not count as usage.

Plan changes

Monthly → higher monthly (upgrade)

  • Refill grant = upper plan's Monthly credit grant − Balance

  • Additional charge for the current month = (Refill grant ÷ upper plan's Monthly credit grant) × upper plan's Monthly list price (rounded down to the nearest won)

  • From your next billing date, the full monthly price of the new plan applies.

Monthly → lower monthly (downgrade)

  • The lower plan's monthly price applies from the moment you change. No separate proration for the current month.

Annual → higher annual (upgrade)

  • Billing date and renewal date are preserved.

  • Difference grant = upper plan's Monthly credit grant − current plan's Monthly credit grant

  • Charge for the current month = Difference grant × upper plan's Credit unit price

  • Remaining-months charge = Months remaining × (upper plan's Monthly-equivalent discounted price − current plan's Monthly-equivalent discounted price)

  • Additional charge = Charge for the current month + Remaining-months charge (rounded down to the nearest won)

Annual → lower annual (downgrade)

  • Existing-plan remaining refund = current plan's Monthly-equivalent discounted price × Months remaining

  • Lower-plan remaining charge = lower plan's Monthly-equivalent discounted price × Months remaining

  • Refund = Existing-plan remaining refund − Lower-plan remaining charge − Discount clawback

  • If the refund would be 0 or less, you cannot downgrade at this time. A notice explains why, and the current plan stays active.

Monthly → annual, higher tier

  • Refill grant = upper plan's Monthly credit grant − Balance

  • Charge for the current month = Refill grant × upper plan's Credit unit price

  • Remaining-months charge = upper plan's Monthly-equivalent discounted price × 11

  • Additional charge = Charge for the current month + Remaining-months charge (rounded down to the nearest won)

Monthly → annual, same or lower tier

  • Scheduled to bill as the annual plan on the next billing date.

Annual → monthly

  • No immediate switch or proration. You'll be directed to the refund process when you try to change your plan. Annual subscription refund rules apply.

Refunds & cancellation

Monthly subscription

  • No usage history and within 7 days including the payment date: full payment refunded.

  • Any usage history, or past 7 days: no refund.

Monthly upgrade payment

  • Fully unused, and both the existing and additional payments each within 7 days: existing + additional payment refunded.

  • Existing payment past 7 days, no usage after upgrade, additional payment within 7 days: additional payment refunded; restored to the pre-upgrade plan.

  • 1 or more credits used after the upgrade, or any other case: no refund.

Annual subscription

  • No usage history and within 7 days including the payment date: full payment refunded.

  • Any usage history, or past 7 days:

  • Existing-plan remaining refund = Annual payment ÷ 12 × Months remaining

  • Refund = max(0, Existing-plan remaining refund − Discount clawback)

  • If the discount clawback exceeds the remaining value, the refund is 0 and no additional amount is charged. Your cancellation is still processed.

Annual upgrade payment

  • Unused and within 7 days including the upgrade payment date: the additional amount paid at upgrade is refunded; you return to your previous plan, no discount clawback.

  • 1 or more credits used after the upgrade, or any other case: the upgrade portion itself is not refundable. Your plan is still eligible for a partial refund under the annual subscription rules above, or you can move to a lower plan through a downgrade.

Top-up (paid credits)

  • No usage history and within 7 days of the top-up: full top-up amount refunded.

  • 1 or more top-up credits used: no refund.