So you said original said 4000, then he said 2000? Did they write 2000$ on it after or just verbal? That's just dumb tho n obviously not your friend. Seeing its been that long n now all of a sudden there's a problem is funny lol. But idk man it's gonna be more of a hassle for him to go thru all of it. Seems pointless. Maybe he just trying to scare ya to see if you cough up some money.