Need some input, I book the Tokyo Edition for a reward night stay this summer, for 2 queen bedroom for 2 guests. I have 2 kids 14, and 16 the total guest is 4. On the reservation, I only put 2 guests what is the chance I will be charged extra and could it be better if I just check in myself ask for 2 room keys then tell my kids to go to walk around first and then go meet at the room,