Bid For an update: Some Airways enable you to bid for an enhance to business class. You'll be able to post a bid to the upgrade and if it’s acknowledged, you’ll be upgraded at a discounted fee. Volunteer to Give Up Your Seat: In the event your flight is overbooked, https://businessflightshop.co.uk/blog/how-to-book-a-tour-package-including-business-class-flights-to-australia/