Billed but not an account holder

I am not and never have been a client of Telkom. The incorrect product was loaded under my name and before anything was activated my side I decided to cancel this product all together. I have been in communication with the call centre and subsequently with the aforementioned consultant. This issue was sorted through ongoing communication, from my view at least. I received an sms this morning of an outstanding bill, months after speaking to this service manager. <br> She is not answering any calls or emails, not sure what the best way forward would be for this issue. Seriously annoyed.