Problem still persists after 6 months

First off I must say my ADSL line was amazing for YEARS. Then something changed and its been bad for many months now.<br> <br> I have reported a fault on six occasions this year. Generally the personnel who come out are friendly and helpful, as much as they can be. But the problem is this: my adsl line is unusable, almost every night, usually starting after 8pm. Daytimes are usually fine. You can see the problem. When the technician comes out, the line tests clean. At night, the link is unusable. <br> <br> The issue is not with the line, this is a time-specific issue.<br> The issue is not with my ISP, I connect to several different ISP's and the problem is the same.<br> The issue is not with my router, I have several routers and the issue is the same.<br> <br> All i ask is that, before clearing the fault, someone takes me seriously, i need to speak to an engineer on the DSLAM/routing/switching side of things. This is a problem beyond the copper, which the daytime technician is unable to diagnose or assist with.<br> <br> Also pls stop trying to sell me LTE. Fix whats broken. I cannot pay nearly double for the same capacity. And pls dont use copper theft excuses. I have paid monthly on time, now please help fix!<br> <br> Richard<br>