******* Debit Orders

In the last week i have had to call FNB to reverse ******* debit orders that have been coming off my account. The last to date happened this morning with the reference of DRE with my ID number. They debited an amount of R99 so it did not notify me when it happened. This is now the third reversal i have requested of this nature and i find it unacceptable that this is the life i will have to live while being a Premier Banker at FNB. No one can seem to offer me any explanation as to how these people are able to debit my account and nor can i be told that they are going to put a stop to it. As a loyal customer that trusts FNB with my finances i think there should be more that needs to be done to stop this kind of thing. Unless this is a way of forcing me to go to another bank?