The steps of binding are as follows: 1. First open the mobile phone WeChat APP. 2. Then, choose "I". After entering the interface, click "Pay" and then select "Wallet". 3. On the wallet page, select "Bank Card" and then click "Add Bank Card". 4. Enter the password, ID card, credit card number and other information as prompted, and then you can complete the binding. After the binding is completed, the cardholder can use the credit card to spend in the merchants that support credit card payment. In addition, cardholders can also repay their credit cards through WeChat. The steps of small credit card repayment are to select "I", click "Pay", and then select "Credit card repayment". After entering the interface, click on the credit card to be repaid, and then enter the repayment amount to repay the credit card of Guangfa Bank.