After you have ordered your ticket and you wish to join a team or create a team you can do this in your account.
The first step is to log into your account.
Once you log into your account you will be on this screen https://tickets.rawchallengeqld.com.au/my-account
Find the order you wish to edit the team and to the right of the order is a cog wheel.
Click on this and a drop down menu will appear. click on order details.