Paying telkom for non-existing line

In June 2016 my telkom line was ****** and Telkom said that they are not going to replace the line as theft in the area is to much, as I filled in a cancelation form im august 2016 to cancel my line as my ISP was Web Africa I only had to pay line rental to Telkom. In December 2016 my account was up to date and owed telkom nothing. Telkom phoned me and said that they want to send me a wireless telephone and Rejected the requist, end of December invoice I owned the R799 dor calls made on my phone number but I never recieved the Phone, they reversed the payment but still charged me line rental as the line is non existant. I was charged for line rental till January 2018 for a line that is non existant. I logged a despite with telkom in 2016, 2017 and 2018 still today it is not resolved. Telkom's accounts department phined me and said that they will refund me and Yesterday I got a call from a dept collections company that I owe telkom R2200 for a non existing line. I just can't t get help from telkom as everytime the same thing happens and nothing gets resolved although I have proof of everything. My first ref number is ********** 0, second ref number ********** 7