MWeb refuses to release line so that Telkom can cancel it

I recently upgraded to fibre after getting ADSL internet from MWeb via a Telkom line. I have spent almost a week, daily, spending hundreds of rands on my cellphone being sent from Billing to god-knows-where trying to get MWeb to release the line so that Telkom can disconnect it. There is no way to contact an MWeb executive to get their staff to do their work as their contact details are simply unavailable. Good way to pass the buck, Sean Nourse! I am now considering disassociating myself from MWeb entirely.