I used a placeholder to make a new reservation for cat 8B oceanview family deluxe (1st/2nd passengers $3762 and 3rd/4th passengers $1773) on the Dream. I am looking at
DCL website in Cat 7A Deluxe Oceanview Stateroom with Navigator's Verandah (1st/2nd passengers $3771, and 3rd/4th passengers $1773) it cost slightly less, can I call my agent to "modify" the reservation to upgrade to a different category and still keep the 10% discount based on the fare I see from DCL website?