I don't know how that would even work. Not to say it's impossible, but based on what I know about NCL, I'm pretty sure they lied to you. The way it works now, if you don't show your card, you get charged. They're trying to say they figured out a way to make some secret list that noone knows about that will automatically comp your drinks in the casino, but only if you are specifically booked under a land casino's reservation?