You may request cancellation (withdrawal of subscription to a purchase) of Hearts within 7 days of the payment date. Requests are accepted by email (support@jst-4u.com) or telephone (+82-2-511-1224). The Company notifies you of the outcome within 3 business days of receiving the request.
Under Article 17(2) of the Korean Act on Consumer Protection in Electronic Commerce, Hearts that have already been used and any content generated or unlocked with them are excluded from withdrawal: digital content is deemed supplied once its use has begun.
Unused Hearts are refundable within 14 days of purchase regardless of that limitation. Where only part of a purchase has been used, the unused remainder is refunded on a pro-rata basis.
Refunds are issued to the original payment method as a cancellation of the original transaction. The Company refunds within 3 business days of accepting a withdrawal request. For card payments, the issuing bank may take a further 3–5 business days to show the credit on your statement.
A full refund is given, with no time limit, where: (i) a payment was duplicated; (ii) a payment was taken because of a system error; or (iii) the purchased service was not delivered.
The Company does not operate recurring or automatic billing. Every purchase is a single one-time transaction, so there is no subscription to cancel.
If you see a payment you did not make, contact support immediately. The Company investigates promptly, secures the account and issues a refund where the payment is found to be unauthorised.
The name shown on your statement is stated on the checkout page before you pay. If you do not recognise a charge, please contact us before filing a dispute with your bank — we can identify and resolve it quickly, usually the same business day.
Email support@jst-4u.com or call +82-2-511-1224 (weekdays 10:00–18:00 KST). Please include the order number shown in your purchase history.