He sent me a message via PayPal the other day saying he had sent my power supply but it was returned to him because of an invalid address. Which I find odd since my shipping address is the same as on PayPal and the same one I originally sent him, and the same one that I've received several hundred packages from off of Ebay and from other members on this website.
Anyway...I told him again to provide me the proof of shipping and that I did not receive the package by May 24 I would escalate my dispute to a claim.
So, we'll see in a few days what happens.