This is a scam for the sellers. The auction goes ONLY to what you state in the auction, no 3rd parties.
The friend likely was the scammer, or a neighbor. Then they try and get the $ back via ebay also. Ebay should fix this because of the records. So go through the process. And never agree to ship to 3rd parties or unverified addresses etc.
They either send the stuff back, or they do not get the $ back.