Unless the event you have purchased a ticket for has been cancelled, or there are legal requirements that provide otherwise (including those of the Australian Consumer Law), tickets cannot be exchanged or refunded.
There will be no rescheduling of events that cannot take place on the designated day. The Event is either on or it’s not.
If you cannot attend an event then you can transfer your ticket to a friend to take your spot or transfer to the next event.
To do this please visit: https://myevents.active.com/