Contract not cancelled as requested

Hi.<br> <br> I phoned the MTN call center on 7 November 2015 to inform them that I would not like to upgrade and would not want to extend my contract after the 24 months, which would have ended either 11 or 14 December, I am not sure. Ref number for this call and instruction: ***. <br> <br> I was told during this call that my contract would be cancelled and that all remaining airtime and data will be removed from the phone on the 11th/ 14 Dec. I was also informed that the last debit order would be on 26 November. And that was that. <br> <br> I went on a business trip to China and only returned on the 16th. Only after using the phone for a couple of days, I realized that the contract has was not cancelled and that all the monthly data and airtime had been loaded onto my phone. <br> <br> I once again phoned customer care on Monday asking again to cancel it immediately (because I am switching to another service provided and I am porting my number). I was informed that the all services would be cancelled in 2 - 24 hours but nothing has happened yet. I was also told that I would be emailed a reference number for that call/ query but also nothing as of yet. <br> <br> Can the contract just please get cancelled?