Cancel Telkom Line

I need to cancel my Telkom line at home - there is just no way I can get this sorted.

I've been sending mails since 13 March and making phone calls but every time you speak to a different person and no one is willing to go that extra mile to help my request.

Every time it's the same story - no documents has been received - nothing has been logged on the system - how long must I struggle with this and if I top paying - it's a bad credit record.