Update: after persuading P2G to have another look, they found the frame!
I was promised delivery, but it never showed. HDNL put it on the wrong van and it wound up in Scunthorpe (I'm in S Yorks).
So it went back and forth between Leeds and sunny Scunny a few times before they admitted that they were struggling to get the frame to me because 'the Leeds depot doesn't deliver to S. Yorks anymore'.
Yep, a huge courier network couldn't work out how to deliver something 20 miles down the road.
In the end I offered to pick it up in person - over a month late, lost several times and I had to pick it up myself! I couldn't be that crap if I tried so chapeau to them.
But the frame is immaculate still and I will be detailing the build on here shortly....