Alexiadis v Zirpiadis

This case concerned an appeal to the Full Court of the Supreme Court of South Australia by Nick Alexiadis against a judgment entered in favour of Carolos Zirpiadis in the District Court. Mr Zirpiadis had claimed $90,251.99 from Mr Alexiadis, alleging it was a debt due, advanced under a partnership agreement, or as a result of default in repayment. Mr Alexiadis admitted receiving advances totalling $105,251.99 but asserted full repayment and denied the nature of the transaction as a loan or partnership. Crucially, Mr Zirpiadis did not plead a claim for money had and received, yet the District Court Judge found in his favour on this basis.

The legal issues before the Full Court included whether the restitutionary claim for money had and received was available to Mr Zirpiadis as a matter of law, given it was not pleaded. The court also considered whether, in the absence of a successful restitutionary claim, judgment could be entered for Mr Zirpiadis on an alternative basis, such as contract or trust, or whether the evidence supported a claim for unjust enrichment. Furthermore, the court had to determine the nature of the underlying transactions between the parties and whether any illegality affected the enforceability of any purported agreement.

The Full Court, allowing the appeal, held that the restitutionary claim was not available as a matter of law because it had not been pleaded. Kourakis CJ concluded that the restitutionary claim was not proved. Gray J inferred that the transactions likely had an illegal purpose, with both parties knowingly involved, rendering any agreement unenforceable. Gray J also found the evidence inadequate to support a claim for unjust enrichment or to determine the true nature of the underlying transactions, noting the lack of particularity in the claims made.

Consequently, the appeal was allowed, and the judgment in favour of Mr Zirpiadis was set aside. Mr Zirpiadis's claim was dismissed.