How to query the historical bill of Unicom mobile phone?

If it is a Unicom card, you can query the historical bill through the following channels: 1 Log in to the online business hall, and click Query > Telephone Fee Business Query > Historical Bill; Log in to the mobile phone business hall client, and click Service > Query > Telephone Fee Business Query > Historical Bill; 3 You can send the short message "103" to 100 10 to inquire about last month's bill, and send the short message "104" to10 to inquire about last month's bill. In addition, you can also contact the local Unicom manual customer service or go to the local Unicom business hall to inquire. The above path is subject to the information actually displayed on the query page.