We haven't heard anything here to confirm any issues with Swedish members buying from eBay UK.
Not sure if this will help, but if you come across this, perhaps send the seller a message explaining you have come across this issue please could they place you on their buyer exemption list, see if that works for you.
If not, perhaps contact eBay Customer Services here , ask if they know of any current issues, preventing you from buying from UK sellers.
This is the easiest and quickest way to contact eBay Customer Services, for a Call Back option.
https://www.ebay.co.uk/help/eua?id=5275&mkevt=1&mkpid
Lines open 8 a.m. - 10 p.m. on weekdays
9 a.m. - 6 p.m. on weekends.
Automated agents will be available on chat outside of the above hours.
I recommend contacting CS first thing in the morning as there's more chance of Dublin answering.
If they direct you to the .com site, log out of here, and log into www.ebay.com, and ask CS here:
Contact eBay Customer Services this way, through their help pages.
https://www.ebay.com/help/home
Lines are open between 5 a.m. and 9 p.m. Pacific Time
Hope someone can sort this for you soon. 🤗
@granse-lf1ka6c8