Charged for a cancelled Telkom line

I requested my Telkom account to be cancelled on 12 Dec 2014, with the understanding that there is a 30-day notice period. This means 12 January 2015 is when my line should be cancelled. I phoned Telkom on 27 January regarding the my account which was for a full month of January (since I was informed that January would be charged pro rata), only to find out that the account was not cancelled. The operator was able to confirm on their system that I had put in the request on 12 December (***) but that the account was not cancelled. They then cancelled the line and created a dispute on my behalf to have the extra money that I was charged refunded to me (***). I was informed that someone would contact me within 2 days, this never happened. <br> <br> I phoned Telkom today (2 Feb 2015) to inquire what is going on, only to be told that they have no record of me requesting the account cancellation, and that I will be charged for up until 27 January. This is 14 days extra and all they could offer me was a sorry, and tell me there is nothing they can do. All this is a result of errors from Telkom's side. At the very least I would like the money that is justly owed to me.