Unresponsive Account Settlement Request

Seems as if this forum/website is my last hope of getting a response from the institution this is directed at.

I have requested on numerous occasions for a settlement letter for my credit card that I have with FNB. All my calls and mails have not been answered to date. My aim is to settle my accounts and become debt free but it seems like the non response is to drag out my settlement amount so FNB can get more interest off me.

I WILL NOT PAY A CENT MORE THAN WHAT MY SETTLEMENT WOULD HAVE BEEN IF RESPONDED TO ON THE DAY OF MY REQUEST.

The call centre keeps transferring me to department after department and the collections department doesn't know how to answer a phone. FNB is in desperate need of well trained staff since the current lot are totally unresponsive.

I request a call back with a resolution to my request, a settlement letter so I can pay off the account and not be told the day after that I was charged additional interest and I'm liable for that.