Horror of trying to cancel a line.

Trying to cancel a line is a saga. Ive been given the wrong information from customer support and now i have to pay for more months of a serveice I dont use because they actually dont know and mislead customers. They say its easier to cancel online and it doid look easy and I uploaded all my docs but apparently its not valid for business lines (it nowhere says that) and the document (https://secure.telkom.co.za/today/media/downloads/Three_easy_ways_to_cancel_online_V1.pdf) that advises you to cancel online says nowhere that it does not work for a business account. You have to mail the arcane *** and after that you are told that the mailbox is full. ARRRRGGGHHHHH. I cant believe there are so many 1star complaints in 1 day for Telkom.