Your university is guaranteed 30 spots up to the first hour after Registration opens (i.e. 9pm AEST).
These spots are then released to the general student population waiting list and are likely to sell out.
If you are from a university with traditionally low attendance numbers you may be able to buy a ticket after the normal sell out period (in the past it has been sold out in under five minutes!) until up to an hour after registration begins.
However - we still recommend getting in fast!