6 months after closing a landline account they still billing

I closed the account, and got confirmation receipt of the cancel my account notice.

My reason for closing the account was the line wasn't working. It's literary been a year that it was not fixed by telkom.

Then four months after closing the account, telkom says there was a outstanding balance owed. Before they can close the account. I agreed to pay this and all I asked was to be sent a statement with the ammount I owed, I still do not have this ??

Now telkom send a sms saying they handing over the account. And since then I have been harassed by this customer contact centre that is doing collections for Telkom every 5 minutes, everyday. I have a Telkom account which I closed but continued to get billed for and get harassed by these agents every ****** day which is highly annoying. When I receive Telkom statement i owed when i closed the account, i will glady settle it, so I do not know why I am getting calls now after to tell me about an account I closed so many years ago. The contact centre number is ********** / ***, please tell them to stop harassing me or they must send me the statements that I have been requesting since last year showing me where I am owing them as they saying. This is ****** annoying me to bits that I will take further to the ombudsman because I do not have peace at all, then on top of that they will be sending statements telling me I owe them for the harassing calls they sending me. now someone else buys the debt and wants to set me back even more and tell me I owe millions when in fact I owe nothing!!! Please investigate this as its getting very irritating getting these calls.