Reoccurring debit orders

There has been an influx of unauthorized debit orders going off from my MarketLink account that I hold with Standard Bank. Every month I have to call in to get these reversed, however the bank still charges me the debit order fee still despite these debit orders being clearly **********. The customer representative I spoke to indicated that they only to stop this is if I close my account.

This is totally unacceptable as I prefer to keep the same account no, secondly, there shouldn't be any debit orders going off from this account in the first place.

Seems to be that the bank is not incentivized to do anything about this because they are still getting their fees.