unauthorised debit orders

I had 2 unauthorised debit orders of R89 each go off my account on the 30/11/2015 and 02/11/2015 I tried calling the call centre on the 02/12/15 and held on for a long time...decided to go to the nedbank branch at bryanston shopping centre where the consulted only managed to reverse the debit orders but just printed the statement that I already had access to on my internet banking???no details of who is debiting my account told me to call the call centre (the same call centre I called and held on for over 15min without being helped and that I HAVE TO PAY R40 for this transactions to be blocked...well I guess its my money I have to do all the running around ??I then called the call centre again then told the money debited on the 30th went to an fnb account I will get the details in 5 working days and the system cant show the one on the 02/12/15 ,ill have to call again the next day to do a request.....2 MAJOR PROBLEMS I HAVE HERE IM BRINGING TO MY BANKS ATTENTION THAT I HAVE FRADULENT AND UNAUTHORISED TRANSACTIONS GOING ON IN MY ACCOUNT AND I MUST WAIT FOR 5 DAYS RUNNING AROUND SEEKING HELP THAT IM NOT GETTING...SHOULD I WAIT FOR LARGER AMOUNT TO BE ****** FROM MY ACCOUNT???