They may rule in your favor, but they will only refund your money if they can recover it from the seller's account; if not, you're SOL. Plus, they drag on their so-called investigations forever, most likely on purpose so that you exceed your Credit Card's dispute timeframe. Whenever I have a problem like this, I don't even bother filing dispute with PayPal - I go straight to my Credit Card and get much better service and faster results.