How do you get a response from telkom

<p>I've been trying to cancel a Telkom ADSL line since September 2016. End of January they thanked me for using Telkom via SMS and cancelled the line. We've unplugged the router and switched to a new service provider. </p> <p>BUT end of February they billed us, I've mailed them, phoned them, went to walk-in stores numerous times, getting promises of escalating the problem etc. to no avail. Up to date I 've been paying for 5 months now for a service I do not have. Must I cancel the debit order at my bank? Or must I continue to try and get the line cancelled? Will they pay back the 1000's I've been paying unnecessarily?</p> <p>Please advise!!!</p> <p> </p>