Does anyone know if you can book a Qantas economy or premium economy classic reward, and then upgrade to a business reward later if one comes up? This would be as part of a RTW booking.
For example, say I can book all the legs in my RTW itinerary with business classic rewards, but there is one leg that only has an economy or premium economy classic reward available at this point in time (no business). If a business classic reward was to come up on that flight (or a flight close to the original date) later, could I call Qantas and ask to change to the available business reward instead? (Assuming the only cost would be the points they charge you to change a booking).
Any help would be much appreciated!