Just to update - Thanks to Guy Betsy who pm'ed me and checked the seat availability for me that there were economy class seats on the flight I had to pay business class. I then "yahoo chatted" to the tour company in VN and asked her to change my booking from business to economy. I cannot see the need to pay the extra money to be in business for a one hour flight. So, now I am in economy for both legs, saving me quite a few bucks!