The cost of an email to Air Asia is infinitesimal. Had you not thought of that?
Air Asia even provide this for potential passengers' enquiries:
AirAsia - Online feedback form, or even this:
AirAsia - Live Help, or perhaps Anensis might care to use this:
Twitter
It seems that Air Asia seems more than approachable and only too pleased to answer potential punters' posers! Just use a leetle bit of gumption and initiative and all will be revealed.