How does Chongqing Unicom inquire about the balance of telephone charges?

Chongqing Unicom inquires about the balance of telephone charges as follows:

1. Log in to the online business hall of China Unicom, and click "Query-Call Charge Business Query-Account Balance" to query the call charge balance.

2. Download and log in to China Unicom APP, and click "Service-Query-Call Charge Business Query-Account Balance" to query the call charge balance.

3. Pay attention to the official account of Chongqing Unicom WeChat. After binding the mobile phone number, click "Service-Self-inquiry" to check the phone bill balance.

4. Call the local Unicom customer service hotline 100 10 to check the phone bill balance.

5. Edit the short message "YECX" and send it to 100 10 to check the phone bill balance.