Contract Cancellation not Processed

I am really frustrated with the run around that I am being given by Telkom Mobile. I am having issues with cancelling a data bundle contract that I took with Telkom in 2014. At the time I took the contract it was a month-to-month contract but a couple of months ago when I went to cancel it to take a summer special deal that they were running I was told that I cannot cancel the contract because it has been converted to a fixed 24 months contract which happened without my knowledge. I showed them the proof that this cannot be, as the contract I signed was a month-to-month contract. They scanned the copy I had and opened a case for it. I was told that someone would get hold of me within 72 hours but this did not happen. <br> <br> I went back to the shop several times to follow up but all they told me was that there is nothing they can do as the case has not been attended to. I should just wait for someone to contact me. It's been 2 months and I'm still getting debited. I stopped the debit order with my bank but Telkom changed the debit order amount to fool the system and it goes through. I have been really patient but I want to take this to the lawyers. This is a serious inconvenience for me