ADSL LINE - how long does it take to cancel?

Voxtelecom were consulted at the end of July re an ADSL line , on 04 August, a Telkom form was taken to Voxtelecom, Cape Town and the consultant in his own handwriting wrote "ADSL" only, so he was well aware that this had to be cancelled. This had to be done as we ordered Fibre through Voxtelecom. As we moved, I also submitted the necessary to Telkom to move our line on 04 August. On 18 September we were advised that there was a delay with Fibre. When I consulted Telkom about the adsl line, two weeks ago I was informed that Voxtelecom had not cancelled it and until such time, Telkom will continue deducting for line rental - which has now transpired - September and October, despite us no longer living at the premises and having no Telkom line as there are no cables at the current address. A consultant at Voxtelecom in Cape Town assured us that she would cancel it, only to discover yet again on Friday 06 October that this had not been done. When contacting the consultant at Vox who assisted us originally, it was mentioned that I have to submit a written consent to Vox to cancel - this was the first time that this was mentioned to us! I have also been charged for Voxtelecom for the month of October. I had to purchase a router in the meantime to connect - so no connection from Vox and no Telkom line but paid for both due to Voxtelecom not cancelling the ADSL line. I contacted Vox again yesterday and was informed that this will not be forwarded to the technical department. Why is it so difficult to cancel the ADSL line with Open servholding pool division? It is now 2 months and I have made no progress with Vox. Received notification from Vox today that my Telkom service has now been suspended and nothing more can be done, I called Telkom only to be told yet again that Vox have not cancelled the ADSL line yet and the next rental amount is being deducted on 9 October as a result of Vox . The buck is passed from Vox to Telkom and Telkom to Vox at my expense!!