Simply no response incorrect plan activated

I app**** for a new line in October, my initial application was for Telkom Evening and Weekend Plan and I have been activated in error on Telkom Anytime Extra Plan. I have been in contact with Shanice who said she would rectify yet after 4 e-mails no response or satisfaction. I have complained on this forum and was given a reference number A ********** 4 and informed it has been escalated but still no response. I am still to receive an invoice/ statement hoping to pay what I am happy to pay but also no communication. How come the poorest communication comes from a communication company.