Cancelling visas is at the discretion of the Department of Home Affairs. If the Department cancel your visa, it may also cancel the visas held by any of your family members.
Your visa may be cancelled if:
If you are in Australia, the Department will usually notify you of the intention to consider cancelling your visa and give you the opportunity to put forward reasons why your visa should not be cancelled.
Cancellation of your visa might also bar you from making further visa applications or prevent you from being granted certain visas to travel to, enter or stay in Australia .
You can’t apply for a Protection visa again if, since you last entered Australia, you were refused a Protection visa.
You can only make an application for another Protection visa if the Minister decides it is in the public interest to let you submit a further application.
For more information visit: https://immi.homeaffairs.gov.au