Serious ********** issue with MTN!!

I have an existing contract with Mtn and monthly my account is debited via debit order. A new number was added to my account without my knowledge. I wasn't aware of this till August because my debit order date was changed by the ********** person. When I contacted Mtn on 135 to enquire about my upgrade not once was I informed about another number added to my account and from July, I stopped receiving my statements via email which i always received. When I phoned the call centre on 135 I was given different feedback from each consultant that I spoke to. I was asked to send my bank statement to some of them and nothing was done. Eventually I got fed up and went to the Mtn Cresta store on the Lower level. I spoke to a guy called Pascal and I had to pay R 1060 in order for my services not to be cut off. By now my 2 year contract was already done and i could'nt understand why I was paying so much. To his credit he informed me of a third number, that was added to my account and he gave me the cell number. I was furious and wanted to know how do I get to the bottom of this and how was this possible as Mtn always professes to record their calls for quality and record purposes. The Mtn sales person said I should go to the Police station and report it and get a case number and an affidavit. On that same day i Phoned the call centre again and they informed me that the Telephonic upgrade of a new number was done in Durban by Mobile Plus. On the 16 September Mathew Chellan called me to verify my voice and on the same day I received an email from him to state that my query (261186) has been closed and if there is still outstanding issues I should contact Mobile Plus. I was under the impression that the matter was resolved and everything was sorted. I can't understand how pathetic Mtn's service is because a new Number was taken out on my name with a debit order going through MY account and how was the verification done. How was my bank details verified?? everything without my knowledge and also changing my debit order date to the 25th of the month when my debit order for the last 7 years has been on the 1st of every month. Also the address to where the phone was send to was not even anywhere near to where I live. On the 11th October I emailed the affidavit and Certified ID to Pascal at Cresta because i was still paying for the ********** handset. On the 14th October I received an sms stating my services will be cut off if I don't do a payment of over a R1000. But on the 1st October a debit order of R1600 was already taken off my account so I was baffled. On the 16th October my phone services were cut off and I did a further payment of over R1000 at another Mtn store. I called the Cresta store and asked for my reference number from Pascal and he said I need to wait. I am totally APPALLED by the lack of customer service and bad attitude as well as incompetence I received from majority of the Mtn staff. Usually Mtn does so many security checks but how was the security breached to allow someone to get a new contract on my name unrelated to my existing number. I need an escalation to this matter urgently as I'm paying for this ********** contract every month.