Telkom and Vumatel Fault management

Please can I be advised how to receive feedback on a Telkom fault with Vuma Fibre? I phone the call centre daily. The Call Centre agents try so hard to help. However they can't. There appears to be no working relationship between Telkom and Vumatel. Thus Telkom sell, and receive payment, for a service they cannot guarantee. As a customer I ping pong with sms-es from Vumatel and endless calls to Telkom. In one calendar year I have had no service for more than 8 weeks. I have no feedback or updates from Telkom. I would like WRITTEN communication as to the diagnostics of the fault. What has been done. What is required to resolve the issue.. Not ONE of the email addresses I have been given work HOW does one get a response?