Bad Service. 16 days and counting

I have signed up with ISP, Home Connect, for a 60/30 fibre contract (Speed 60 Mbps). Since 1 January I have experienced nothing but problems with Home Connect. For the last 16 days I have had erratic service, speeds ranging from 0.7 to 40 Mbps giving me stop/start and heavily pixelated streaming. I have spent hours on the phone with their support team and have recently been moved up to their “Escalations” department. I have since been contacted by four different agents, all with the same requirements. 1. Reboot the fibre box and the router. 2. Reconfigure the router. When none of these results in an improvement 3. Bypass the router. Connect my laptop direct to the fibre. Run three speed tests. Take screenshots of the results and send them to Home Connect These screenshots were to be sent to the fibre supplier and they would get back to me. Only one of the agents have got back to me A technician from the fibre supplier has been to my premises, ran tests on the line, connecting directly to his company and found no problems. His conclusion was that the problem must be coming from Home Connect I am now in the situation where Home Connect says the fibre supplier is at fault and visa versa. The worst part is that they are making me pay for this service