Max why are you calling them? We have repeatedly told you there is nothing they can do. Your line is running between expected parameters, Openreach would not deem a fault and would likely end up making a charge.
You will be in exactly the same position no matter which ISP you are with, there is possibly only one ISP who I could think of whom may risk the charge, but alternatively I could image their head honcho being pretty frank and telling you facts straight.
Pestering them every day achieves nothing. I thought you said you were going to wait until after Christmas. You are getting obsessive over something which is not impacting the way you use your connection and you are only winding yourself up more.
Time for me to be frank too. I and others try our utmost to make info available. Often giving out info that is not known by the public. You have people like Eric & Tony & BE & Ron developing tools to help monitor lines to aid and diagnose genuine line faults. Be aware that sometimes Openreach and the ISPs do no like that this information is available to the general public because there are some who become obsessive to the point where they start shutting down on what they share because it achieves nothing other than additional work.
Some of us who have been around a long time may recall what happened with DMTtool and how a few people started tweaking without knowing what they were doing resulting in messing up their line and calling the ISP for assistance. There were actually documents out there in which BT/Openreach scorned DMTtool because of people abusing it.
Plusnet are one of the few ISPs I know who will run GEA tests if you ask. If you keep abusing them, and causing additional work by asking them to run these tests every day, then they may well withdraw this facility for all their customers. That is not fair.
Its no point blaming DLM - yes I agree banding is harsh - but at the end of the day you can't deny that it saw your line getting 80 resyncs in a very short time frame.
There is a need for DLM and all SPs around the globe using FTTC have some sort of DLM. If your line was flapping around then you'd be grateful for it.
As discussed, currently your line is running without any indication of a fault and is running well within the line estimates and there is no banding on the line.
The numbers within the line speed profile name are simply taken from the DLM speeds and on fibre the DLM simply reacts to the line performance rather than dictating the speeds the line is achieving.
This I am not happy with and I'll pass that on to someone.
Perhaps they looked at an old GEA test result as there's probably lots showing on your account... perhaps it was a novice rep... or perhaps they just said it to shut you up.. who knows?
Max... you REALLY need to stop pestering them every day.. its not good for your own health. I didn't want to have to do what happened over at TBB, but I too am beginning to get concerned that you are not listening to good advice.