Headache cancelling my fixed line rental!

This complaint is out of complete desperation with the hope that Telkom might respond and help me out! I tried calling Telkom but apparently you can't cancel your fixed line by calling them anymore. I've sent an email with all my details, the required signed form, and copy of my I.D., on 4 February (and again on 26 Feb). The automatic reply email I received in response notified me that I will be contacted within 72 hours. I have received no calls/emails from Telkom to date.<br> <br> Today is the last day I have the rights to the unit I'm renting. New tenants will be moving in soon, and Telkom is making an already stressful move more stressful. The new tenants will be able to use my phone line, and it seems I won't be able to stop it. By all rights, Telkom needs to cancel my fixed line contract by latest 4th March, and disconnect it as soon as possible.<br> <br> I was planning on installing another Telkom fixed line in the new place I'm renting, but now I'm not so sure anymore.