How to check the phone bill when Unicom sends text messages?

Unicom's mobile phone number can be used to check the phone bill balance as follows:

1. Download and log in to China Unicom APP, and click "Service-Inquiry-Basic Inquiry-Remaining Telephone Charge" to inquire.

2. Log in to the online business hall of China Unicom and click "Query-Telephone Fee Business Query-Account Balance" to query.

3. The phone calls the Unicom customer service hotline to check the phone bill balance.