Capitec is allowing ********* to debit our accounts without authority

I have a capitec bank account for more than 4 years now. I have been happy with my banking until recently. I have to reverse debit orders that are not authorised by me every month and capitec charges about R20 for a reversal. Other banks warn you when there is a suspicious reference from the "company" that submits debit order request. The references don't make sense and capitec allow these ********* to put debit orders on our accounts. I am not happy and if this doesn't stop, I will close my account and all my fixed deposits with this bank.