Anyone else experienced a PAID line being added to their account without your authorization, and then had issues with T-Mobile when trying to remove the added line and get a refund?

Yes in June they did this to me and I had them remove it when my bill shot up $75 they lowered my plan and every month my bill is $75 more per month. It was fraudulently added and now I am stuck with this company and spending hours on the phone with very little if any help. I feel that a class action is in store as well.