There is no obvious answer. It could be a price for admission to the fringe of a festival. Many festivals have main acts and performers but then also a wide range of new performers who play in smaller venues on the fringes of the main event. It is possible that there is a festival which has a separate price for people who just want to visit the fringe events. Hairdressers sometimes cut only your fringe (the front of your hair which comes down over your forehead). They often charge less for cutting the fringe only. Normally, this applies only to women.

I also live in NZ, and I don't recognise that phrase. Where did you see it?