> Sure, but if it's a corporation, who is going to represent the corporation besides a lawyer?

Under common law, lawyers (in the US sense) are not required on either side in the case of handling a dispute or a small claim.

Specifically in Australia, the company would have a complaint department, and the case would be dealt with by a complaint officer, not a lawyer.

If the scope of the case exceeds the tribunal's authority, the case is handled in the state's district court or in a federal court for cross-jurisdictional matters. The official title of the person representing the defendant (e.g. a company) in a courtroom is the barrister, but the case documentation and legal advice are provided by a solicitor.