How to check the phone bill with telecom card?

the method for checking telephone charges is as follows:

tools/materials

Huawei nova 7

EMUI11..

telephone inquiry

1. Call the 11 telecom customer service hotline to check the telephone charges balance.

2. Send a short message to 11, and edit the content as "11", then you can check the phone bill balance.

3. open the telecom business hall app, enter the mobile phone number, get the verification code, and click login.

4. You can clearly see the phone bill balance on the homepage of the app.