Revolving Loan

To who it may concern

I have a revolving loan with FNB for the past three years. I have been unemployed and there’s no salary going into my cheque account. I have contact FNB last year to stop debiting my cheque account that I will be paying money directly into the revolving Loan account, which FNB agreed but since last year MB, every month we go to my Cheque account and debit and it will cost on paid charges on the account which is extra money extra cost on somebody which is unemployed because I’m paying directly to the revolving Loan This happen every month end and I will call FNB. They will tell me they have stopped the debit order with the debit or still go through so my question is who is not responsible for this unpaid fee? last year I clear all this on paid fee. FNB is making my life very difficult to finish paying this loan I don’t know if this is the intention. This is the worst service. It cost me money all the time calling FNB to resolve this matter someone needs to sort this out for me.