Why the extra charges

It’s seems like we all have the same problem T mobile is robbing people with a gun. Then when you get a supervisor they hang up and don’t call you back. They been doing what they want with us. We all need to get together and sue them. I’m going thru my bank to get my money back they been stealing from me for almost 4 yrs now. We can get together and put them out of business they service sucks period.