How to check the phone bill by sending SMS on telecom mobile phone?

1. Find the SMS application on the mobile phone desktop, and click the application to enter the SMS main page, as shown in the figure below.

2. Find the edit option on the upper right in the main page of SMS, and click the edit option to enter the edit page, as shown in the figure below.

3. Enter the digital number 1000 1 (official telecom number) in the recipient column of the editing page, as shown in the figure below.

4. Find the content editing bar below in the editing page, and enter the number 10 1 in this bar, as shown in the figure below.

5. After entering the content and the recipient, select the mobile phone card to send in the lower right of the editing page, as shown in the figure below.