Anyone at Telkom willing to assist after 3 frustrating years

Is there anyone at Telkom who plays fair,I have complained for 3 Years about my landline which has been out of order for 3 years,I now have recieved an account for usage,reconnection and jack.this has now been added to my account which now stands at nearly R5000.00 and you really expect me to pay for a service that I have not had for 3 years your comments being that I should pay and you will disconnect. Telkom is aware of my problem as they passed credits up until July 2017.

How do I contact someone in this badly run organization? and do not tell me to register,I did and because I did not type fast enough for "Your not so helpful staff "all I got was No Responce try again which I did 3 time eventually to be told pay........Is there anyone at Telkom with the common decency to help me or return my call or answer my emails?