If you "won" it from a comapny that seems a little shady be very careful about added charges and stuff. There are, unfortunately, companies that give away cruises as "prizes" but actually they are trying to get you to time-share presentations, etc. Or sometimes it is even worse and they are actually planning to tack on maximum airfare, transfer and other charges that cost more than the cruise.
I am the editor, but I also speculate, ask questions and play devil's advocate. I reserve the right to change my mind.