***** on my personal account

My personal account has been debited/swiped with different amounts almost every month. Every time I call fnb im told it’s fees that the bank paid for me when I had no money. Nonsense because there is no bank that pays for any purchase when there are no funds in the account. It will clearly decline due to insufficient funds. On the 21-06-2018 R412 was reversed as they found that it was *****. And now the same purchase happened for R408 and a rude consultant by the name of Tendayi Taboki insisted that it’s fees on my account which makes no sense as I already paid for them. I am utterly annoyed and disappointed by the service received from this bank. I’ve been calling in for 2 consecutive days without a solution. ***** is taking place on my account and I’ve been transferred from one department to another because no one is able to assist me. I tried getting hold of Shadeen Arendse on ********** 943/ ********** 406 but no success. Someone please investigate and reverse that money and change my card number to prevent this from happening again.