Can't downgrade my ADSL to be stable

I used to have a stable 4mbps ADSL connection. Telkom sales rep called and got me to upgrade to the 10mbps package. Since then I've had frequent disconnects and when the connection is up a very slow connection connecting sometimes even at 640kbps. Technicians have been there twice. Once for the install and another to fix the line. The rest always have stories and close my tickets without resolution.<br> <br> 1. I've been trying since December to get Telkom to revert my ADSL connection back to the 4mbps I had as that was what was stable and working. I'm now being charged for an unstable and sub-par service and nobody seem to take ownership of that at Telkom. <br> 2. Why does their Facebook agents keep saying that they will revert and never do?<br> 3, Why does the Telkom chat session at the \Talk to Us"immediately close and you loose the chat history? I can't seemingly copy and paste from it either.<br> 4. Why can't a callcentre agent assist me with a downgrade?<br> <br> """