First: JetPunk ignores punctuation, so anything that accepts "U.S. Virgin Islands" has to also accept "US Virgin Islands". The way the website is built, it can't not.
Second: I just double-checked. "US Virgin Islands" is indeed accepted. I'm assuming you either had a typo that you didn't notice, or were accidentally trying to enter it into the wrong box, or something.
Second: I just double-checked. "US Virgin Islands" is indeed accepted. I'm assuming you either had a typo that you didn't notice, or were accidentally trying to enter it into the wrong box, or something.