If eBay handled the dispute, maybe the OP can contact them via live chat and ask them which into they provided and what he or she can do now? The problem is the OP had not noticed that a PP dispute was open so he or she did not provide any info for the case. But apparently eBay had formerly decided in favour of the seller?

Maybe the OP can still have a look at closed cases in his or her PP account. Maybe there is an option, I don't know.

He or she should still be able to send PP a message.