ADSL - POOR SERVICE, BILLING ISSUE

I have a Telkom ADSL account. firstly I wanted to move the Telkom Line to my new address, after several communications with Telkom, Know one came to assist me or called to assist me. about a month went by before I finally got hold of them. they even sent SMS's stating they will arrive on a specific day and that too never happened. ( I have proof of emails and SMS's if needed). I then didn't even want to move the line and decided to cancel it. this is when Telkom actually came and then looked at my new address ( easily almost 2 months later). the line could not be moved to there as there were no connections. so I then requested to cancel again as I cannot use their internet. they immediately stopped my connection at my old address and this is from July. I still pay every month til today for a connection that I have been disconnected of in july. so I have paid R1197.00 (3 months@ R399) for nothing. I have tried contacting them so many times and they have excuses for everything. and they want me to pay more in October as well?????? what can I do here? I feel I am paying for a service I am not receiving? can anybody assist me please?