compaint about companies who make unauthorised debit orders

I have been using Nedbank for a while now and for the previous experience I have had with them I cant say much. I am a student allocated in Durban. the problem started when I noticed some debit orders for ARCADEZONE, NITEDCON, HONEVLT And UNIREWARDS. The most annoying thing about these companies mentioned above is that they keep on doing debit orders that I have never authorised the worse part is like they are targeting me when I don't have money in my account. I have tried to consult with the Nedbank consultants and they have never seem to help much because they wouldn't stop these debit orders. Now what happens with Nedbank if one doesn't have money on their accounts and these companies mentioned above make debits order I am getting charged for each debit order at cost of 150 per company and I keep going back and forth in the bank trying to fix these problem but they never seem to end. and even when I try to reverse these debit orders somehow I end up owing the bank a lot of money which they call it UNPAID MAGATAPE ITEM. I have tried to reverse this once and it was successful however again I tried to reverse again and they told me these charges cant be reversed tell me how come something you don't know get you into debt that you cant take responsibility to seriously I am a student getting 1000per month for meals,clothes bearing in mind that this is the money that suppose to last me the hole month but for the past few month I owed the bank an amount of 961 rand continuously this never stopped even now I am owing the bank an amount of R595.60 and I seem like they have made reversals for the debit orders tell me how one be charged for the transaction that was reversed and that one says she is not accountable for. I tried closing my account with Nedbank and I could not close it since am on the negative balance. so what I did I thought there would be an eas to all these problems and open the new account at CAPITEC bank and now these companies who make debit have my new account details I would like HELLOPETER to make amends and deal with these companies I would truly appreciate if you can just get back to me contacts SITHABILE MDUNGE EMAIL ADDRESS : ********** ********** cell: ********** 300/ ********** 913