Communication with eBay is either through a Live Chat or there's a Call Back option to select. I will show you the best link to contact them below, if you need to, but contact tomorrow as the lines are now closed being a weekend. If you contact very first thing at 8 a.m. there's more chance of Dublin answering.
However, are you sure we cannot help you here. Please come back and explain the issue you have encountered, there are many experienced members here happy to help you.
If you need to, to Contact Customer Services it's a Live Chat, or you can select to speak and request a Call Back. Click on this link:
https://www.ebay.co.uk/help/eua?id=5275&mkevt=1&mkpid
On weekdays lines open between 8 a.m. and 10 p .m.
On weekends they open between 9 a.m. and 6 p.m.