I have traveled to SXM multiple times and most of us assume once we get the approval we are ready to fly. Most of the time when boarding the agents glance at the form and we are ready to board. Not so at FLL with jet blue. They checked the flight number very carefully so if you came on a connecting flight and used the flight you arrived with it was a no go. Imagine coming from LA and be told you had to resubmit the form with an hour left to go. A mistake anyone can make. Also other passengers were not let on the plane because they had no return ticket. They were told to buy a ticket and then cancel it.