If I were in your position, I would think either this VP has got something personal against me or may be they think I am not suitable for this position. You've

If I were in your position, I would think either this VP has got something personal against me or may be they think I am not suitable for this position. You've been stepped over thrice now. Why not just have a heart to heart with this VP or his boss and directly ask them. Then decide what to do based on the answer. Personally, I would have left after the company failed to keep their word the first time.