I received a MYKI Infringement notice whilst using a Melbourne tram on the Queens Birthday Public Holiday. Although the MYKI Card had plenty of credit, it had apparently expired about a month earlier. There's nothing on the card saying that it expires, or any date. I've subsequently learned that the cards automatically expire (for no very good reason) after four years of use, but this one was purchased in late 2011. A replacement can only be obtained from a railway station, but I'm an occasional user of public transport and then mostly on the tram. Do I have reasonable grounds to contest the fine?