I'm in the same boat, being in the US, where Sailfish X isn't officially available. But just now looking at the dropdown list of countries at Jolla.com where SFOS X can be purchased, it doesn't appear the UK is on the list of countries now, either. Wasn't it on the list prior to Brexit, or am I remembering it wrong? I have been wrong before.

Anyway, glad I'm a fan of Irish Opera, that makes up somewhat for the inconvenience.