Except there are no details on how the refund process works... So, family of four saves up to visit NYC for vacation, now they need to find an extra $1000 to t

Except there are no details on how the refund process works... So, family of four saves up to visit NYC for vacation, now they need to find an extra $1000 to take the trip. And it's unclear when they get that money back (is DHS going to post somebody at international departure terminals to issue them - unlikely).