Canceled ADSL line 5 months ago but still being billed

<p>I canceled my adsl line in December 2015 and was advised that my service provider needs to release the line before Telkom can cancel the line, my service provider, being Cybersmart released the line 2 weeks later. I then called Telkom and advised them that the line was released and that they can go ahead with the cancelation.</p> <p>5 months later and im still paying the account, with numerous phone calls and mails being promised that the line will be canceled and that I would be reimbursed for the months paid, but today I received another account from them that i need to pay.</p>