Bad Service

I took up a cell phone contract with MTN Corporate and the phone was delivered to me via courier. A few months later the phone stopped working (would not come on or charge). I visited the Phoenix Plaza branch to get it repaired however the manager refused to take the phone as I took the contract with MTN Corporate and I was to go to the Gateway branch. The first time I visited the gateway branch I was told that I had to have the phone charger in order for them to repair the phone. I visited the gateway branch for the second time and this time was they would not take the phone from me as I did not have all the documents that were delivered with the phone (which is something that was not brought to my attention before). I called the MTN Corporate contact centre about the matter as I have lost the documents that were delivered with the phone and they assured me that they will give me feedback on the matter via email or telephonically. It's been two weeks and no one from MTN has contacted me and I am now stuck with a broken phone that I am still paying for<br>