NRB Unauthorised Debit

An unauthorised debit order of R156 went through my business account on the 25 February 2016 for \NRB acting subscription fee\", I called Nedbank call centre and they said they are aware of this and they are investigating and should go to my branch for the money to be reversed back to my account. So I went to the branch today 29/02/2016 to get my money back and unfortunately I was told the issue is being investigated and I'm not the only one facing this problem, unfortunately they can't reverse the debit as of yet. What concerned me was that the small business banker didn't even bother to take my information after I asked him to. He just told me that a bulk sms will be sent out to people affected and there is nothing he can do. To top it all, they are also clueless as into why this money was debited from my acc. Whats the point of having a bank account if your money isn't safe with the bank?"