FNB- Worst service I have ever had.

I have been requesting a revolving loan paid-up letter for about 1 week now. All they are telling me is they will assist me. But first they said my account is in arrears, then I paid the arrears amount. Then an agent told me my account is in credit...and then afterwards speaking to another agent after logging a complaint she told me my account is in arrears by the same amount as before( after I have made a payment). Now I have made two payments of the same amount, and nobody is getting back to me. Absolute horrible service, it's like they are just sitting there collecting a salary. No service! No pride ! Sometimes when I call I get cut off. This has happened numerous times. I'm thinking of moving all my accounts to another bank.