Telkom accounts

It had been for a year that I was not able to use my incoming line. I notified them and sent out someone to come and have a look at the line. The problem was at the pole. I tried cancelling my line and was told i could not because my service provider of my internet had to be cancelled first before they could do that. So i did that. I now cancelled Telkom. Ref no ***0 and ***0 For all those months not having use of the line I still had to pay. I asked them for a credit they told me they had nothing on the system for me to liable for a credit. on the 27th August no connection to the line and DSL line. They now sends me an account to pay of which I had no benefit from. I cant get through to then. I did an online request for them to cancel.