Bad service from telkom

I have cancelled my Telkom account on the 3rd of January 2017...i have all the reference numbers where they several time tried to cancel it again after I was still getting invoiced. I have even spoken to individuals at telkom sending them emails of the cancelation form as well as the reference numbers. I still receive invoices. They have now handed me over to Traceonline. I found traceinline to explain to them whats going on and asking them what to do. The lady was very arrogant telling me to get legal advise if i dont want to pay them and she hung up on me while i was speaking...... This is terrible service from both companies and I would not recommend their services....