To pay with a credit card through WeChat, you can follow the steps below:

1. Open the WeChat application and click "I" in the lower right corner to enter the personal page.

2. On the personal page, select the "Payment" option.

3. On the payment page, click "Wallet" to enter.

4. On the wallet page, select the "Bank Card" option.

5. Click "Add Bank Card", enter the credit card number, and follow the prompts to complete the card binding process, including verifying the cardholder's name, entering the credit card validity period, security code and reserved mobile phone number, and enter Received SMS verification code.

6. After the binding is successful, select credit card as the payment method in the WeChat payment option, and use the credit card for transactions when payment is required.