Why am I being charged for Stopping ******* Debit orders?

I have in the last 3 months had a number of ******* Debit Orders going through my account. I have queried and stopped them but for some reason they keep coming back.

FNB Insists on Charging me for stopping those accounts and I need to understand why i need to pay for something I have no control over? What is it that I would have a debit order for at 99 rands or less? The call centre agent that I spoke to has the Audacity to say that FNB does not know if I made those Debit orders so they will charge me for everything that they do on my account.

I need this resolved as there are a further two debit orders that I flagged on Wednesday 30th and was told I would have to wait until they cleared to reverse them. Well, this morning they cleared and I will NOT stand for you to charge me R55 for everyone of these reversals because it has nothing to do with me.

MANAGE your security and I should be able to verify debit orders before they are activated on my account!