Caller Type: Unknown
Phone Number Report: This is a scam. They called me earlier, and claimed I was "carefully selected to participate in a 30 second political survey in exchange for a 2 day cruise for 2". After looking online, the scam is they want your credit card number so you can pay the Port Tax in exchange for the free cruise.
If you ever get a call about this in the future, try to get a live person and get as much info about them as you can, then report them to the FTC, for starters.