Have you ever ended up somewhere that you shouldn't have? Maybe First Class?
I've traveled quite a lot in my life (mostly to and from New Zealand) but never have I been upgraded.
Is there a trick to getting that upgrade? Is it about the timing involved in turning up to the airport?
I haven't really noticed many people here in Australia getting bonus upgrades but I'd love to see it!
Let me know if you've got any tips or tricks!