Non delivery against contract

Cell Contract was up for renewal. I met with JP Vogel at waterfront branch on 25th November 2015. I signed all documents to downscale my old MTN Anytime 750 contract to a 24 month My MTNChoice 200m plus a 12 month 2GB data bundle for R1399.00. I retained my old hardware. Monthly cost would reduce from R701.75 to R249.00.<br> Implementation was set for 24 to 36 hours. After two weeks this had not occured and I called the branch and was informed that there had been an technical lapse with MTN and that it would be corrected in 24 hours. In mid Jan this had still not happened and I then travelled to the branch and personally informed informed the service staff of the problem. They undertook to resolve this with 24 hours.<br> This was still not resolved by 5 Feb and I again went to the branch and was assisted by Shaun Barthis and when requesting to speak to the manager, Shirley van Rooi, was told that she did not deal with customers.<br> He undertook to resolve the problem and revert to me by latest Mon 8th Feb. nothing has been heard from them and their phone was not answered in 6 attempts to make contact with them. I am still being billed at the old higher rate with extra data penalty charges.