Cancelled contract

<p>I did not know that after the 24 month contract when you no longer want to upgrade you have to call and cancel the contract, because their papers and adverts says R499 x 24 month. So i did not cancel the contract thinking when it reaches its term they will cancel it. I kept on getting airtime and they deduct less money as per contract, which i assumed it was for the airtime i was getting. I later called and asked about it and they said i shuld cancel it. Well i did tell them to cancel, i cant remember which month was it but it was late in 2015. Then they did not cancel it and i had to reverse the money after they debited. The following month again i got airtime and i then called MTN again and ask if they did not cancel and they did not. And i had to ask them again to cancel it. And yes they did cancel it. and reversed the airtime and data the y loaded immediately. Now they are saying i owe the R819.00 whic h i dont know its coming from. I enquired and they told me it was for the previous month and that i was paying for the previous month, but i was getting R200 airtime but even today they cannot explain how they got to that amount. I tried on twitter to talk to them but still. I have requested for the call records i made to cancel the contract, nothing still. Even the statement nothing. And they have now taken me to the lawyers. I am not going to have a bad credit record because of their incompetencies.</p>