I've tried on three different PCs, one of which is an out of the box Win10, never been used machine, just installed Chrome and it still gives me the same loop. Maybe I'm navigating wrong or something. I am raging, I've been at this for an hour. I can book hotel through normal channel, but navigating via "/Executive Club/Spending Avios/Hotels" is a bust. I get a prompt that says "Be aware you won't be able to change your booking" (praphrase) and click "Continue" and that's the end of the line. US website.