The way I understand the way these cases lodged with FOS or ACCC work is that if eBay or PayPal choose to challenge the case then they will be billed a $1500 fee. This then will be the reason they capitulate because it's cheaper for them to do so.
Win for you tho. I wondered if they might black mark your account or something and throttle your sales in retaliation but we did not notice anything like that when we won a FOS case.