I just looked at the latest 4 day Navigator that was posted on castawayclub.com and was wondering the following: it states that if you re-book a 7 day cruise while on board you receive 10% off and $200 stateroom credit. I'm one of those rare people on the boards that really only wants to go on a 3 or 4 day cruise. Do they not have re-booking discounts on those cruises? I'm assuming the stateroom credit would be less for a 3 or 4 day but I thought I would at least get the same 10% discount. Has anyone gotten these discounts re-booking less than a 7 day cruise? thanks!