Breach of contract and NO Response

I have been billed for BIS of R 59 service for 6 months after cancelling it in November 2014.<br> My contracted ended in February 2015 and they offered me a new contract called a flexi 200 which I agreed to as long as it is not with a Device. they have billed me for the BIS service since November and charged me for a Device that I do not have in my possession.<br> <br> I have tried the last 2 weeks to try and cancel this contract as Altech Auto Page is in Breach of contract and they are not getting back to me or interested in resolving this Issue.<br> <br> When i get hold of the call centre they cannot cancel anything and they put me through to the accounts department that never pick up there phones. I have work to do and cannot sit on the phone for an hour waiting for someone to answer a phone. I am lucky enough to be using my office phone or I would not have any more Airtime to call.<br> <br> I have been a loyal customer to Altech for 6 years and feel that the service is disgusting. Please can you help me resolve this issue.