Best people to ask would be Customer Services.
Seeing items listed on eBay doesn't necessarily mean they are allowed to be listed. The site is vast , over 7 billion listings on at any one time, so some that break selling regulations can slip the net and become listed until they are spotted, reported and removed.
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.
@gr-2919