Similar experience(s) with previous purchase attempts here.. strangely with folks who have posted in this very thread - I've paid deposits to "hold" the game, then in the intervening period suddenly the game is off the market. Only to turn up several weeks later at a MUCH higher price.
Happened twice; but what are you going to do? In one of the instances in the end, I ended up with a rare version of a game I love , so that worked out for me... lesson for the seller don't be too quick to buy a new game you end up selling 6 months later