no system that works for cancellation

My contract period was ending so I went to the store in Mossel Bay to do a cancellation. I was told as it was a Company account I had to cancel directly with MTN and not through the store. I was then in George garden route mall and they confirmed this and said it had to be a fax not an email and supp**** me the fax number to send to. I duly did the full letter on Company letterhead etc as required and signed and faxed it off on the 6th Feb 2015. I waited assuming all is well. Then last week I went to the Mossel Bay store to enquire what has happened. I was told nothing as the cancellation HAS TO BE DONE THROUGH THE STORE?????? After specifically been told this is not possible. I then reluctantly realised I have been conned into another month of payments. The store resubmitted and sent me a so called confirmation that only says this email address is not used anymore and the request wont be actioned. Emailed directly from the MTN store??? I went back and they said they would resend and send me proof. Nothing. I went back this morning 16/03/2015 and all the could say was they requested an escalation, but the cancellation hasn't been done yet. What a joke. Full circle.