Wrongfully Penalised for Honored Debit Orders

FNB penalised me roughly R600 for honored debit orders while I don’t have any debit orders going through my business account at all. My business account does not have an to go over balance at all, if I try to make a transaction bigger than the current balance it will just decline. Spoke to Bridget at Business banking call centre and explained to her the situation, she simply said she can’t help, the merchants did their banking late when my account was on negative due to bank charges. Now why must I be panished for that as there was money in my account when I did those transactions? Otherwise system would have declined. I explained that this once happened before and her collegue logged a call for me and fixed it as she said it’s a system error, but Bridget and her supervisor refused. Really thinking of moving. This is annoying as some of us chose these type of accounts that don’t go over to avoid these ******* fees but somehow the bank will find a way to get their dirty hands on our money.