When I saw the headline, I was sooooooo hoping to read about a positive outcome for you.
Ok, in some way, it is. Great move from Chihoe Hahn!
But your "conversation" with Jay is so out of this world. This guy really has the nerves to ask for another $1900
I would stop the conversation immediately (if there is any at all), hire a lawyer and sue this thief.
Btw: Have fun with your new guitar.