You can check the credit card limit on the WeChat official account of Bank of Communications Credit Card. The limit information is generally updated at the same speed as that of online banking. The specific operation process is as follows:

1. Log in to WeChat and add the Bank of Communications WeChat official account.

2. Click the specified location to bind the credit card to WeChat.

3. Enter the credit card number and query password, and the binding is completed.

4. On the homepage of the Bank of Communications WeChat official account, click "Simple Check" to check information such as bills, limits, points/exchanges, credit card fees, etc.