Pathetic service from FNB

I have tried to contact FNB telephonically and via email regarding an overdraft I took about 15 years ago, asking for a settlement, as I was charged 4x the interest and now the account is sitting quite high. I would like to have it settled. FNB customer service puts me from one department to the next and there is absolutely no one that could assist me, ive been on the phone from person to person for about an hour. I have sent numerous emails, but according to FNB timeframe, they send an automated email saying they will respond within 2 days. It's been 3 weeks now and no joy. This is frustrating as they are not willing to help or assist in any way. I am trying to pay this account before the money gets used, but there is no genuine assistance. I even went into the bank, however, the consultant advised I call FNB, as only they would be able to discount this amount. This charge was unfair, as there was also no communication.

The service is terrible.