NOT CANCELLING LINE FOR 7 MONTHS ALREADY

Not cancelling our Telkom ADSL line rental. At the end of February we cancelled the account online, it never happend. Their excuse is that the ISP (Axxess) have not released the line.... this is has been ongoing until now. Axxess have confirmed that they did release the line. Telkom always when contacting them, say that someone will contact us, that "someone" must have passed away because we have not been contacted at all - or perhaps their Telkom line is not working ??? Every time we contact them they tell us that the cancellation is a months notice we give them all the previous proof of cancellation but nothing. But very cheeky Telkom send us a line rental account of R220.00 every month (R220.00 x 7 months R1 540.00) We paid the R220.00 upto the end of June but not further. It would seem the best way to get rid of them is to stop paying so that they can cut the line (the only thing they seem to be good at) as I do not believe that Telkom will refund us the 7 months line rental they so dishonestly ****** from us by not cancelling our contract