CONTRACT CANCELLED

I had two contracts with MTN both the contract were ending in october . I have decided to carry on with one contract and the other one was going to be pay as you go . I was told to phone before month end of october to cancel the other one ,I did just that on the 26th of october and I was given the ref *** by Sibongile Sikhosana. she confimed to me the phone has been migrated to pay as you go.<br> <br> I gave the phone to my son and I was not even aware that they give the provision I used to get while the number was in contract, I only realise when the statement comes .<br> they have charged me for both the phone . I refuse to pay because it was their mistake. <br> <br> I spoke to Given at 12.53pm until 12.58.pm and we did not aggre on each other's point until I asked her to transfer me to the manager and she put the phone down on me at 13.02 pm. please help as I am not liable to pay for the phone which the contract was cancelled