Hi, @Lsharpe. That's odd that you're not seeing the UK on the regional dropdown. Which of our smartwatches are you trying to set up, and did you purchase it directly from a UK retailer?
Ah, I see. In that case, it's possible that the Watch4 you purchased might be region-locked.
Which other regions are offered on the dropdown? Please feel free to attach a picture or screenshot, if that is easier.
If you just purchased your Watch4, it might be a good idea to raise this matter with the retailer/seller.