Adding Someone To A Reservation

Currently my sister is booked solo in a Boardwalk balcony on the Oasis for August. She booked during a promotion that gave her a $175 OBC.

Right now she is trying to talk my other sister to go with her.

1) what is the latest date she could be added to the reservation?

2) what is the chance she could lose her OBC?

Thanks!!

I believe you can add a person up to 24 hours before the cruise.

She may only have to add port fees and taxes since she has already basically paid for two people due to the single supplement (just my guess)....This may not affect her OBC at all....she shouldn't wait too long even though her cabin will accommodate two people she may not be able to add anyone once lifeboat capacity is full. She should call RCI or who ever booked her cruise and get exact details for adding her.

They might not let her if the lifeboat assigned to her cabin is full. Then they might offer to move and pay the current rate.