failure to end 24month contract

my contract ended in October after 24 months and i got a paper to fill in requesting to \cancel"my contract i sent it to the email on the paper. now the contract is still not cancelled. i was charged for R1200 for the contract with extra fees. after numerous calls to 8ta and putting in complaints no one phoned me back after a week i phoned and eventually i received a on Sunday 15/11/2015 the person said they will not charge me those fees as they were incorrect i said it was fine but before we could finish conversation call was cut he did not phone me back. then telkom charged me those amounts. i called call center i asked for a manager and when the funds will be refunded i was told 20 working days. i was told manager was busy and she would phone me 2days later no phone call no cancellations and i still have to pay for a contract that i did not want to renew because of bad service. its a fault of telkom and i am R1200 short """