Telkom refusing to help with cancellation

Telkom has made it so clear to me all they want to do is make my experience with them the worst possible experience. From waiting Months to have my adsl installed to being billed for not having internet and then having to wait 6 months to have a dispute resolved. In the time of my dispute being open my line was suspended which is against the company policy. And now telkom has managed to make my cancelation with them just as horrible. I have requested to cancel my line so I was told to settle my account first, now that my account is settled the online process of cancellation won't allow me to cancel because it seems the request has already been logged. So now I want to cancel but I cannot.