Customer Services is now available 24 /7, but ' live agents' only at appear within certain hours as shown below.
I recommend contacting CS at 8 a.m. as there's more chance of Dublin answering.
You could of course come back here, explain the issue you're experiencing, there are many very experienced members here, happy to help.
If you still wish to, 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.
@jacou1625