Hi. I have a student visa (subclass 500) valid for 5 years and I'm travelling to Australia on January. I've already booked my one way flight. The travel agency said that I might have problems with the airline staff because they could ask for the flight back. As I'm going to study for a couple of years I, obviously, don't have my flight back. Do you think that I'll have problems at the airport even with my passport and the Visa Grant Notice? I really want to avoid unnecessary delays...Thank you.