We booked a cruise for 12/13 while we were onboard last June. We will no longer be able to keep the December date. If I move the date, will I still retain the onboard booking incentives (the OBC and 10% discount)? We are cruising again in 3 weeks; so, if we will lose the booking incentives, I can cancel the ressie altogether and rebook onboard. What is the best course of action? THANKS!