Yesterday was the deadline for the seller to respond to my claim regarding the cell phone. He did not response by yesterday, and so this evening, I received a nice email from PayPal.

We have concluded our investigation into your case and have decided in your favor

Yay!! I won. I won. I won! I've received a partial credit so far, and I should receive the rest within 5 business days. Let's hope they are able to recover the rest soon.