Hmm. Senator, I wonder as you had a reservation with them if you have been furnished any further information….?
They are not offering refunds, just asking you seek recompense from you credit card (which I assume means insurance).
With only 8 seats per aircraft and reasonably priced at $169 a ticket it does seem odd they were not able to drum up enough trade, but then my several experiences in the US this year suggest that they are faring even worse than the UK, especially in NYC.
Wiki suggests it is in financial difficulty, and I wouldn’t be surprised if USH will not be returning.