It certainly seems like a scam, but why would the scammer keep responding after receiving the payment. Is the scammer trying to drag this on for a certain timeframe so a chargeback cannot be done? It sounds like the payment was made as a "goods or services" as there was a fee. I assume that means you can contact paypal within a certain time from purchase and start the refund process through them.

I understand why you would feel that way, but what if it’s not Shay you are dealing with and a scammer is using his name to lure potential victims?