Telkom not cancelling land line as requested

I have been trying to cancel my telephone line since 12 April 2018. I did the cancellation on their website (Ref. ********** 9) and nothing happened. I phoned the call center several times and they informed me they would escalate the problem. Still nothing. Eventually, a call center person told us that Afrihost had not canceled the ASDL Line. I contacted Afrihost who confirmed that they had canceled the ADSL line and handed it back to Telkom.. I then re-submitted a cancellation on the Telkom website (Ref. ********** 7). After waiting a week I started phoning the Call Centre and the same story was told to me whereupon I emailed Afrihost confirmation to them confirming that the ADSL had been canceled. I am not prepared to pay any amounts due since I submitted the cancellation request.