Caribbean Cruise Line is also known as Celebration Cruise Line. They have one ship, the Bahamas Celebration which is a converted European ferry boat. They are not affiliated in any way with Royal Caribbean or Celebrity although obviously their choice of names is meant to imply a connection, such as when you posted your question in our Royal Caribbean section. (I've moved it to General cruise chat)
CCL uses various marketing methods to get people to commit, such as your 'survey', cards in the mail saying the person has 'won' a free cruise, and other similar things.
People come here every so often saying it was a fun 2-night cruise. Others say it is a scam. All I can say is that I personally wouldn't give them my business.