Apologies if this question has been answered before. Wife and I have booked an award flight to USA in Aug 2012. The qantas booking has requested details about Secure Flight and Advance Passenger Information and one of the mandatory fields is destination address which we won't have that until much closer to the travel time. Seems a strange request to have to provide that info at the time of the booking. Anyway would like to know what problems if any if we don't provide the details until closer to the travel time once we have hotels booked. According to the Qantas site it states that this information must be provided at the time of booking.