This means that your stateroom has yet to be allocated. You are guaranteed to be allocated, at least, the grade of stateroom you have booked. This could be situated on any one of the decks that offer that grade of cabin and can be allocated at any time from the date of booking until the day before sailing. For example, you may book a BC grade guarantee stateroom, which means you will be allocated at least a BC grade stateroom or higher, which could be situated on any deck. If you have a preference of stateroom grade and where you would like to be positioned on the ship, you will need to book this stateroom. We are unable to take any requests for cabin location when booking on a guarantee basis.