Finally the UK website came up, and I could order fine via that. The app just was completely messed up. I'm in the 27 Sep - 2 Oct window now though for all that delay…

@jamesthomson I just got through too. Apple somehow lost my wife’s preorder, so I had to manually recreate that on the fly; lots of errors as I went through that too.

I did get Sept 20th delivery on both, however.

Website was a complete failure for me.