UNAUTHORIZED DEBIT ORDER

On 26 Feb I got an incontact msg of an unknown debit order, I then tried to stop it on my cellphone banking as previously advised by the bank but it didn't appear so I waited, I kept checking (using my airtime ofcourse) then I decided to visit the branch on 02 March and I was told that they can't see it on my account, I then showed them the incontact msg and I was told to bring my bank card (which I didn't have with me). I went back with the card on 03 March and they could now see it and I was told to phone a consultant as it would charge me it I let them do it. I phoned and the consultant told me he could not stop it, he would email me a form that I must fill and send to him and would charge me R50. This has been happening for a long time now and the bank cannot explain why they let these debit orders go through. In the past we would have to pay R35 for each transaction reversal and these ****s take off less than R100 per transaction so that it doesn't show on incontact, some months they add up to R700 and its now R50 rands per transaction meaning one only gets half the amount back. It is now worse when we cant see them on cellphone banking and bank statements