Disappointing service!

Frustrated and distressed! My Business LTE account was suspended as I was trying to dispute a charge on my bill. I received NO response from the billing department as to what that charge is for but my service was suspended. With no other choice, I paid the disputed amount in full. 6 days later, my service has STILL not been re-instated and I am being sent from department to department with each person saying that they have done all they can to help me and basically, it’s someone else’s problem. I have exhausted all avenues of contacting them and at this point I literally don’t know what to do. Every day I am told that “a request to unlock the line has been submitted.”