Hi! We are thinking about changing our currently booked 7 day cruise to a 3/4 day back to back. I was wondering how that affects the 10% rebooking discount on our 7day as well as the $200 OBC. Will the 10% carry over to the 4 day cruise and then will the OBC reduce to $100? Or am I out all together in that they won't transfer my discounts because it's not a 7 day cruise again? THanks!