Have a reservation for 2 in a standard king room, but I'm thinking about adding my kid. I see max occupancy is 3 for the room. I already have a rollout bed reserved for an extra fee/night. Is it necessary to make an official change to 3 on the reservation? If so, what is the best way to do this? I'm not able to add a child simply through the app. Is there an online concierge or other way to do this? I only see an international phone number. thanks in advance.