Frustrated MTN customer

I have upgraded telephonically in October last year and I have not got the contract that I was promised in fact I got something worse off then what I had.I have since then tried to make contact with them to get the recording since November and still today with nou luck.This was the incident I received yesterday *** saying it was closed. When I phone in again they had nou clue what was happening.I really wish they can now just sort my contract out what can be so hard to get the recording ding when I upgraded. They sold me something I clearly did not get and was not explained what is got. I'm so frustrated it's been months now.