1. Log in to the idle fish account, enter the "My" page, and click "My Payment Method".

2. On the payment method page, find the "credit card payment" option and click "Open".

3. Fill in the relevant information of credit card collection, including the payee's name, credit card number, expiration date and security code. After confirming that the information is correct, click "Save".

4. After the setting is completed, the buyer can pay by credit card.