TELKOM SERVICE

It's been a year since I tried cancelling a wifi router contract with telkom. From day one of receiving the device there we connectivity issues, the call centre offered no help, I had to hang on the line for hours to no avail. I eventually got fed up for lack of service and requested a cancellation of the contract. I followed all that was required of me in terms of cancellation, but 11 months down the line, the contract is not cancelled. My bank account is debited monthly by telkom, I recently found out from Transunion & Experian that my profile is in arrears. I've wasted time and other resources trying to resolve this dispute. Not once in the past year has telkom tried to contact me. I've just been sent from pillar to post. I need this resolved like yesterday... PLEASE HELP! This is ruining my credit profile