You should never clcik on links in suspicious messages.
Did the message address you by your username ID, and not your real name, then it points to a scam. Did it come through eBay messages? If not , this also points to a scam.
However, contact eBay Customer Services, they will confirm whether they sent this message or not.
This is the easiest and quicket 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.
@lucychicken