After 8 months you are too late to get any assistance from Ebay.
If you paid with a credit card, you may be able to open a Section 75 chargeback but you will need to investigate whether your claim is eligible.
Otherwise, you might have to investigate legal action.
Citizens Advice may be able to suggest next steps if you bought from a UK business seller.
"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)