The QQ credit card repayment method is as follows:

1. Log in to the mobile QQ client, enter the QQ wallet, select Funds and Financial Management, and click on credit card repayment.

2. Please follow the page prompts to enter the bank card number, bank type, and cardholder name to be repaid, and add the credit card. After confirming that the information is correct, click Confirm to submit.

3. Enter the repayment amount and click Repay Now.

4. Enter the payment password and the repayment payment is completed.