4th Complaint - How do I cancel my ADSL and landli

I have complained about this same problem so many times I have lost count but at least twice on this forum all with the same result. On the first of July last year I requested that my ADSL and Landline be discontinued effective 31st July as I was moving to the UK. Since then I have been charged every month for the service despite all my complaints and requests and then out of the blue I got a response from Telkom and thought at last something was about to happen. Telkom asked me to supply information which I did and that was where my bubble burst as the email I sent was deleted without being read. So back to square one. Please can someone make my day, disconnect the services and refund me the R 3 138.64 which they have deducted from my bank account on a debit order.