This kind of lawsuit is difficult to prove, and there are many situations that can have such consequences. If you want to sue, according to the rules of civil procedure, it is difficult for you to prove that Unicom is at fault. Traffic may be caused by downloading and browsing. It may also be caused by malicious plug-ins in the mobile phone, or it may be that there is a traffic service in custom machine, but the instructions are very clear. You can't hold Unicom responsible for these reasons. In addition, if you don't have the SMS reminder function, Unicom has no obligation to remind you by SMS in principle.
If you have to fight this lawsuit, the lawyer's fee is about 300, and the lawyer's fee is uncertain. You can find it between 3000- 1 0,000, depending on what kind of application you want.