If you wish to speak to a human,  the best time to contact Customer Services, is 8 a.m. on a weekday,  as then there's also more chance of Dublin answering.

Only speak to them,  it's a Call Back option,  so you'll hear if it's ' Ireland Calling'.

It's Easter Monday next, lines may open for live agents at 9 a.m. but as said, still only speak to Dublin !

Use this link to contact CS.

https://www.ebay.co.uk/help/eua?id=5190

@durvall