Renzo75

EDITED: AVOID UNPLEASANTNESS.

You will need to file a small claim at the Southport Magistrates court. You will need to prosecute the entity that you entered into contract with. If it is a Pty Ltd ensure to include (join) the Directors (do a company search).

File your claim and let them file a defence. If they do not file a defence you can apply for default judgment.

After winning your case (or getting default judgment) you still have to get the money - you have only got a judgment. You will need to apply for a warrant (from the Court) to bring the defendants back to Court and give an account of assets and liabilites - subject to this the court will order them to pay according to their means.