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’m on the upgrade programme and got on to the website after almost 25 mins. It showed pick up dates for Edinburgh store and I chose 22nd but now the emails say I’m 27-2 Oct. What’s going on!