It's probably no bad thing, because keep checking it was unproductive and was only fuelling your obsession with speeds.
You've been told numerous times how it works and it is only an estimate based on your existing speeds and/or neighbouring lines. Once you had your g.fast connection there should have been absolutely no need to check it again. Now that you are blocked I can only hope it will be better for your mental health by not looking at estimated figures on a daily basis, that actually serves no purpose once the line is connected and without faults.
Although they say contact your ISP, I sincerely hope that you are not doing that either.
There will come a point when your ISP will become hacked off with requests for availability or GEA tests. A one-man-band ISP such as your current service provider is likely to get fed up much sooner than the likes of PN who have many staff.. and will get annoyed at how time consuming this process is.
From what I have seen so far, your current ISP has been quite accommodating and exceedingly fair over the g.fast upgrade. Don't push your luck Max, and ruin any good will. Everyone reaches a point when patience wears thin and I'd hate you to find yourself in a situation like the boy who cried wolf, who ends up getting no help when it is actually needed.