The ACCC is actually quite switched on to any misleading conduct.
They have gone after Airbnb / Airlines / Hotel Booking / Concert Tickets - for misleading conduct.
Especially business that use drip pricing (adding compulsory hidden fees later) or misleading prices like in the Microsoft case.
Anything sneaky - they're normally right on to it.
I recently learned this, but the reason Steam offers 2-hour no-questions-asked full refunds was partially because of a lawsuit by the ACCC