We are members like yourself with no access to your account or any messages explaining payment holds.
For this you'll need to contact eBay Customer Services, they do have that access to your account, and can see if there is some further verification or ID required from you.
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.
@ben0205