Was the mailing address confirmed with Paypal?
If so then the purchase is covered as long as you used the confirmed address.
There's a scam that's been going strong for about a year and a half. And it works most of the time to get the buyer their money back plus they have the item in hand.
The buyer states they didn't receive item and seller fearing a neg refunds money.
Check on the shipping address and lemme know if it's confirmed or not.