No I was not logged in, I will have to start doing that. I do not remember deleting my cookies, but may have done. Or perhaps some of the massive updates my computer has been getting in the last few days did something.
I have emailed them in hope, but it does not matter too much.
As a side issue, out of interest and doesn't explain the speed test result, I believe the top OR sync on VDSL2 is around 41000-42000. The reported (capped) 40000 is a data rate not a connection speed. Similar to the old days when a 512kbps line sync'ed at 576kbps, 1Mbps at 1152 and 2Mbps at 2272.