apple credit card

You can if you meet the following requirement (and other requirements listed in) How to apply for Apple Card - Apple Support

Be a U.S. citizen or a lawful U.S. resident with a valid, physical U.S. address that is not a P.O. Box. You can also use a military address.

This is primarily a user-to-user support forum; other Apple users like you. We only have access to publicly announced information and I haven't seen any announcements about future international expansion plans.

No you cannot.

**edit - I was assuming you were still in the UK when I answered this. I should have asked more questions. Foxfifth is 100% correct.

I've been 100% wrong a number of times but 100% correct may be a first!