Telkom Mobile Taking unautherised debitorder

My monthly debit order is R499.00 for an LTE contract that goes off on the 1st of every month. I noticed that my line was suspended and I called the call centre and they informed me that I have a short payment, bearing in mind that its a debit order account! I checked my bank statement and I notice that a debit order of R38 was take on the first of March 2015. Why they debited R38, I have no idea and neither did the call centre agent. So in pay the R499.00 via EFT and sent it proof of payment to [Email Removed] who assured me that she would take care of it immediately. Until this day I have not hear anything from her. On 13 March 2015 I was debited R998.00!!!!! I called them to sort it out any this is what they told me. I have R499.00 for the previous month in arrears, witch I have paid via EFT and R499.00 for March. We are not done with March so how do you decide to just take premiums in advance now? The problem is I have no money left for the rest of the month!!! I was informed that a refund will take anywhere from 7 to 21 working days!! SO now I have to wait and suffer for the rest of the month because Telkom made a mistake. I want my refund NOW!!