Use the link below for all the details and to open a return using the Ebay Money Back Guarantee.
You need to open a case and then be proactive - if you don't get a label you must go back to the case.
But, start by clicking on the 'start a return' button from the link,
https://www.ebay.co.uk/help/buying/returns-items-not-received-refunds-buyers/return-item-refund?id=4...
"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)