If this is recent, please file a chargeback with your bank. That's the only way to deal with such scum, otherwise they've still won - the scammer got their money and eBay got their commission.

The only thing that matters is money and this is why these bans are a thing - it's cheaper to screw some customers over than to have a competent human analyze the situation. Hitting them in the wallet is the only place they'd actually feel it.