The method for checking credit card bills on WeChat is, take Shanghai Pudong Development Credit Card as an example.

1. Click the "Search" option in the upper right corner of the WeChat function interface.

2. Enter Pudong Development Credit Card in the search box and click on the mini program.

3. Click the "Associate Now" option in the Shanghai Pudong Development Bank applet interface.

4. Enter your credit card information and click "OK" below.

5. After logging in, find the "My Bill" option in the mini program interface and click it.

6. You can then view the credit card bill.