terrible telkom service and no answers

Line cancellation sent on 23 may 2018. called received on 28 June to perform cancellation. Lady informed me that she apologizes for calling late. She checked and saw that mweb had a hold on the account for adsl. She then said she will put a note on the ticket that once mweb releases the line then the telkom line to be cancelled and backdated to when I requested the cancellation. Received an account in October that my bill is now R1200. Called telkom back on 10 October at 11:40am and was informed that nobody called me on 28 June and there is no note on the ticket. Said they called in July to follow up but couldnt get hold of me, I received no call and they cant tell me which number was called. Now they wont cancel or tell me if they can cancel it until I pay them. This is terribly shocking service from an employee trying to be a smartmouth who said I must prove that they didnt call me in July. My line hasnt been used since June and have been told it has been disconnected since august.