Unauthorized Debit Orders

I would like to know what is Capitec bank doing about these unauthorized debit orders as its becoming too much now. This month i got two messages from ZYZERINV lodged a R 99 debit order for date 181130 on your acc. For queries call ********** 351 ref ZYZLN7164 or for more information go to www.assistlifestyle.co.za. And

MZANSI4U lodged a R 99.99 debit order for date 181126 on your acc. For queries call ********** 430 ref MBSMZ ********** or for more information go to http://www.mzansi4u.co.za

I went to the bank to ask them about it and all they did was to ask me if i didnt give these places my banking details and my question if i did would I be coming here to ask about them. I never gave these companies permission to deduct on my bank and my friends are also affected by this as now we need to keep reversing these debit orders and its affecting your credit profile as well. I would like them to do something about this as i think they have a loop hole somewhere on their system.