You can't do anything through Ebay who give you 30 days to return.
Your payment provider may be able to help as you have bought an item which is not fit for purpose, so investigate starting a chargeback through your bank/credit card.
"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)