You need to contact eBay Customer Services to do this, their lines are open now.
Contact them this way.
Scroll to the very bottom of the page on the link below , and click on Contact Us.
https://www.ebay.co.uk/help/buying/search-tips/advanced-search?id=4049&query=1455&st=GENERAL_SEARCH
Lines open today between 8 a.m. and 10 p.m.
