The Service structure is used for passing on information about charges for extras and services. Services can be provided at the HotelReservation level (no ServiceRPH) or to a RoomStay or RoomRate. The ServiceRPH serves only to link a charge to a room or a rate.
All Service totals provided should be considered full amounts added to the base reservation charge. In other words, the charges are not per person or per day but full charges. The total amounts provided for the RoomStay and Reservation should be considered as inclusive of extras.