If that's the case, why in the world wouldn't they tell the guy? Just a guess: worry of a lawsuit. If they give no reason (as they are entitled not to), it's

If that's the case, why in the world wouldn't they tell the guy? Just a guess: worry of a lawsuit. If they give no reason (as they are entitled not to), it's hard to make a "counter-attack". If they give any specific reason the OP potentially has some sort of discrimination angle to pursue.