Bad fibre line at Telkom

I've had Telkom fibre for about 6 months now but in the last month there has been terrible speeds. I've done traceroute's and can see where the problem is. Its at a Telkom node that is named ADSL. So how does my fibre run though a ADSL route? Secondly, Nobody at Telkom seems willing or able to address the packetloss at this node. The technicians did not even know what packetloss or a traceroute is. How did they get employed as network technicians then??? I would appreciate it if a Telkom technician that knows what he is doing can phone me at ***