Searching for June rates using the 16% off code. Not all the hotels seem to add an "Extra Guest Fee" but when I pull up rates for Pop Century, it is adding an extra guest fee of $37.33 per night for a 10 year old child. When I search using 1 adult, I don't get that fee. Shouldn't there only be extra fees for each adult over 2? If I book with only 1 adult, will I be allowed to change the reservation and add a child without a fee?