I also am not receiving the SMS validation code. I'll update when I get (or don't get) the promised phone call (which comes ~4m after they think they sent the SMS). I suspect they're just overloaded by the HN spike.
Edit: The app called, offered me a code which was rejected, and refuses to Re-call me because "rate limit exceeded."
Edit: The app called, offered me a code which was rejected, and refuses to Re-call me because "rate limit exceeded."