Open a return on the grounds the item is damaged.
The seller has 3 days to provide a label and must refund you when they get the item back.
If they don't supply a label promptly, or refund you within 48 hours of getting the laptop back, you have to go back to the case and ask Ebay to step in.
You are about to use the Ebay Money Back Guarantee so read the details.
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)