You need to contact Ebay - this is a member to member forum, not Ebay.
Use the link to get a callback and explain what has happened to the parcel you were expecting.
https://www.ebay.co.uk/help/eua?id=5275&mkevt=1&mkpid
"There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
Søren Kierkegaard, Danish philosopher (1813 - 1855)