Arrive at HK airport to check in 2 hours before the 8:10pm departure time and are told the flight would be delayed by one hour. No big deal but an sms might have been good. I later see the time has been provisionally changed to 4:30am but that they would update us at 1am. We finally board the plane at 5am only to be told we will have to wait another 30 mins whilst they find an engineer. I mind less about the plane being 9 hours late taking off but the truth was that the plane had not even left Singapore when we checked in. How difficult would it have been to sms everyone to let them know that the flight will be delayed. That way we could have made other arrangements rather than hang around HK airport for 9 hours! Their offer of compensation was HKD40 - about AUD5