Yes, you can use one or the other on a cruise that's already booked given they are still valid. Always best to ask your agent to double check because there may be other discounts that are better or that can be added to the existing booking.
Travel Agent/Cruise Specialist w/15 yrs exp and 50 Cruises on 12 different cruise lines in many parts of the world! VIETNAM VETERAN OWNED & OPERATED. Certified Accessible Travel Advocate. Specializing in unsurpassed personal service to insure you have a hassle-free vacation!