1. Log in to the online business hall of China Unicom, and click the menu "Query-Call Charge Business Query-Call Charge Bill" to query the bill.
2. Log in to China Unicom APP and click on the menu "Service-Inquiry-Telephone Charge/Detailed List-Telephone Charge and Bill" to inquire about the bill.
Warm reminder: At present, China Unicom APP and online business hall have realized the bill inquiry function of users 12 months before the current account period.