Card Payment and Installment Usage Guide
Card Types That Do Not Support Installment Payment
Installment payment is not supported for the following cards.
Corporate Card
Business Card (including sole proprietors)
Debit Card
Prepaid Card
Gift Card
Hybrid Card
Bank-affiliated Card
Payment Precautions
Installment payments are not available in the mobile app, so please make your payment through the webpage.
Installment changes for already completed payments are not possible and can only be changed through refund and repayment.
Since card installment features are not provided in in-app payment methods, if you wish to pay by card installments, please register your payment method on the CLASS101 webpage through PC or web browser and proceed with credit/debit card payment.
Subscription Service Installment Change Guide
Installment payments are only available when paying by credit card. (※ Naver Pay and in-app payments do not support installments.)
Payments through the app prioritize in-app payments according to store mandatory policies. If you want installment payments, please make your payment through the webpage.
If payment is already completed, changing the number of installment months is not possible and you must proceed with refund and repayment.
Individual Class Installment Change Availability
Category | Notice |
|---|---|
If payment has already been completed | Please understand that changing installment options is difficult for payments that have already been completed. |
Within 1 month after payment completion | We will check if canceling the existing payment and making a new payment is possible, then provide guidance. |
After 1 month from payment completion | Please understand that processing is difficult. |