Simple debit order reversal of unauthorised debit

I called the call center to reverse these irritating R99.00 debit orders which i have to reverse every month because standard bank cant do anything about them, only to be asked security questions which have nothing to do with my account but have everything to do with my life and where i have been. As a customer i answer these questions only to be told i have failed the security questions about my own life, which is kind of weird. Now im told i cant be assisted i have to go to the branch to reverse R99.00 for security reasons but at the beginning of the call you ask me to confirm my id number and contact details which to me is a security check automatically. i am really disappointed in the way Standard bank has resorted to making life safer for the customer at the expense of making life difficult for the customer. In this day and age we like things to be simple and quick. All i wanted to do is just revers a mere R99.00 back into my OWN account!! only for standard bank to make a mess of something that can be done on an app at FNB!!