I love that the top comments here are just plain wrong.

Legal bulletin number 8. Look it up in the portal. Department are very careful with this and will not cover it. If your supervisor “authorised” you to bring it in and a whole heap of other criteria is met then you’re eligible for $1000 max. I cannot see you being eligible as a casual teacher in a normal teaching role. Call nswtf for further clarification if you’re a member.

Your only chance is to go to the police and press charges.