Diservice at its worst by absa

I have plus minus 7 (seven) un authorised debit orders that amount to about seven hundred rands that go through my absa account every month.i am forced to reverse the amounts everytme which in turn spoils my account and create a bad credit record for me.i tried adressing the matter wth absa to no avail.absa just doesnt care.they are only interested in charging me for the reversal transaction.i opened the account with absa with trust and im not expecting to be told they have nothing to do with it.this is a classical case of poor customer service.im very frustrated and even consider switching to another bank.