eBay Scam

It had to happen at a certain time and after 4 years of eBaying, I got scammed or more likely ripped off. I bought a triple tree from a vendor on eBay and got it shipped to a powder coating facility in California (BPpowder coating), after agreeing on the price and money was transferred via paypal, nothing showed up after 21 days. The logical thing to do was to raise a case on PayPal, the vendor response was simply to  reverse the transaction and leaving me with no option of  appealing as the case was closed. Now at a loss of 130$, I can only hope for ethical good will.