So the message above yours says it's a scam, and you're reply is "...it was not a scam". If you have to pay an advance fee for anything you have won - it's a scam. Every time. Due Diligence folks!
Did they tell you that it was "free"? did they then ask for a debit or creidt card to pay some money? If so, then it wasn't "free" period, end of story, I don't care what they claim the money was to be used for. There are no tickets, there is no cruise, and if there is you no doubt paid a lot more than what the cruise was charging through legitimate outlets.
Prize Offers: You Don’t Have to Pay to Play!
http://www.ftc.gov/bcp/edu/pubs/consumer/telemarketing/tel17.shtm
http://www.consumer.ftc.gov/scam-alerts
http://www.consumer.ftc.gov/articles/0076-telemarketing-scams
http://www.usa.gov/
Too funny I called a wrong number too!! I WAS VERY SKEPTICAL but it is the real deal ...its a very short trip to the bahamas but you can extend the stay .