Booked a cruise online on opening day 9/30/2019. Will be going on a cruise November 16, 2019. Would like to reshop that cruise to receive the 10% OBB credit. My TA will be Costco once I transfer this booking to them by October end of month. How is the best way to reshop and keep the same room and have Costco as my TA. Any help would be much appreciated.