1. Log in to WeChat account and enter "I" to set it.
2. Click "Pay" to enter, and then click "Wallet".
3. Click "Bank Card" after entering, and then select Add Bank Card.
4. Enter the WeChat payment password and reserve the mobile phone number.
5. Choosing the type of card means choosing the credit card and the bank it belongs to.
6. When you receive the verification code and enter it in the corresponding position, it means that you have successfully bound it.