hey took my money and left me hanging

I have never felt this low about FNB. My account is settled and they claim I still owe. A number of branch visits did not help. Now I am not mobile I try to call and they send me from one department to another. I eventually got to the legal department because apparently no one can check my debt status except them. And guess what, I had to hold until I could no longer hold any more. The one time when she finally picks in up, she says the long introduction and hello once and drops the call. After 11 freaken minutes of waiting, she drops the call...I am beyond fed up, all I want is answers that my account is settled as per the settlement letter I received. POOR, BAD SERVICE. A lot of time (at some point I spent over about an hour with a consultant who also said she will call me with feedback as I could not wait in branch forever and never did), petrol (going more than once to your branches) and airtime has been taxed by this matter