I believe there was a period of time that Virgin Bank was not supported by eBay.
Contact eBay Customer Services their lines open at 8 a.m. today, if you contact CS then, there's more chance of Dublin answering. Ask if Virgin Bank Business or Private is allowed to be registered for an eBay account. Ask how long it takes for it to be processed, too.
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 between 8 a.m. to 10 p.m. on weekdays.
9 a.m. to 6 p.m. on weekends.
I recommend contacting CS very first thing in the morning, when the lines first open, as there's more chance of Dublin answering.
@andy20678