Sold a virtual game account to a trusted website and they disputed and I won the case

ABJ8

So i sold a runescape account to a very trusted website who get a lot of service, they decided to charge me back but I provided proof of my emails with him showing that he has control of my account so i ended up winning the case because of that and because paypal don't cover virtual goods, they still have control of my account but since they tried to charge back i really want to recover the account back on them as they tried to scam me. I won the case a few days ago, if i recover the account back can they appeal the case and make me pay back their money? the only reason i'm doing this is because they're a big website and they tried to scam me which i was not pleased about.