Cancelling Telkom is an impossible mission.

I never had a working Telkom line since April 15. After numerous requests, no-one ever came out to fix the problem. I decided to stop paying my account due to no service being received. By June I tried to cancel my account. I went into Telkom twice to attempt to do this. I phoned Telkom on numerous occasions where most of the time I sat on the phone for about half an hour, without the phone even being answered by Telkom !! I have sent emails to 3 different email addresses. Through all this I'm still receiving an account each month! I have since sold my house and left the country...and I'm STILL getting charged! It's an absolute joke. Of all the well known bad service companies and institutions around, Telkom definately tops the charts for me. I'm trying to save Telkom admin fees by cancelling my account, because I will NEVER pay for something I haven't received. It's been 6 months already. I wonder how long this can go on for?