For help from Ebay, you needed to open an 'item not received' case within 30 days of the latest estimated delivery date.
Most payment providers give you 120 days to start a chargeback.
After a year, there is really nothing that can be done unless you want to take legal advice and potentially take the seller to court.
"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)
