Both CITIC Bank Credit Card and Bank of Communications Credit Card can call the customer service number of the credit card to the manual customer service, log in to the credit card online banking official website, and turn paper bills into electronic bills. In addition, Bank of Communications Credit Card can also turn paper bills into electronic bills through the official WeChat of Bank of Communications Credit Card.

The following is an example of modifying a paper bill into an electronic bill by logging in to CITIC Bank's credit card online banking. The specific operation is as follows:

1. Open CITIC Bank Credit Card official website and click Login.

2. Enter the ID number, inquiry password, verification code and SMS verification code to log in to the online banking.

Third, click Personal Settings in the menu bar on the left.

Fourth, click to set the bill acquisition method.

5. Click on the electronic bill, enter the email address, and click Submit. You can successfully change the bill from a paper bill to an electronic bill.

In fact, the process is very simple. If in doubt, it is suggested to call the bank customer service directly or go to the bank to find relevant business personnel to understand.