Telkom unable to cancel my service?!?!?

I'm trying to cancel my landline and ADSL line service, but am being told they are unable to do so, because it is still with the ISP, in this case Afrihost.

Afrihost has confirmed on more than one occasion that they have migrated the line back to Telkom, and that the line is no longer with them.

I have tried cancelling by calling into the Telkom call center, as well as online, and have received responses that they are unable to cancel, and I need to ask the ISP to move the line back to them. I 'm starting to pull out my hair here.

Additionally, shortly after Afrihost confirmed that my line has been moved back to Telkom, my ADSL stopped working completely.

Can someone over at Telkom please just cancel my service, and stop billing me.