William Co-Buchong & Anor v Citigroup Pty Limited & Anor [2011] NSWSC 1199

William Co-Buchong & Anor v Citigroup Pty Limited & Anor [2011] NSWSC 1199

NAB succeeded in its change of position defence because it recognised the receipt as valid, acted without negligence, and its dealing with the funds was causally linked to the receipt supplied by Citibank. The later authority, Heperu, applies, and restitution by NAB is not required as it would be inequitable for Citibank to recover at NAB's expense where both were innocent victims of fraud.

Parties
First Plaintiff: William Co-Buchong; Second Plaintiff: Rosa Li Co; First Defendant: Citigroup Pty Limited; Second Defendant: National Australia Bank Limited
Jurisdiction
Australia
Judgment Date
12 October 2011
Procedural Posture
Restitution Claim; Cross Claims Between Banks Following Settlement With Plaintiffs / Principal Judgment; Determination of Cross Claims After Settlement With Plaintiffs
Outcome
First defendant's Cross-Claim for restitution from second defendant dismissed; second defendant (NAB) succeeds in its defence.
Legal Topics
Unjust Enrichment, Restitution, Change of Position Defence, Fraud, Mistaken Payments
Equity Banking and Financial Institutions Unjust Enrichment Restitution Change of Position Defence Fraud Mistaken Payments

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Parties

William Co-Buchong

First Plaintiff

Rosa Li Co

Second Plaintiff

Citigroup Pty Limited

First Defendant

National Australia Bank Limited

Second Defendant

Procedural Posture

Restitution Claim; Cross Claims Between Banks Following Settlement With Plaintiffs / Principal Judgment; Determination of Cross Claims After Settlement With Plaintiffs

Legal Issues

  1. 1 Whether Citibank is entitled to restitution from NAB after both acted on fraudulent instructions and compensated customers
  2. 2 Whether the defence of change of position is available to NAB in these circumstances

Ratio Decidendi

NAB succeeded in its change of position defence because it recognised the receipt as valid, acted without negligence, and its dealing with the funds was causally linked to the receipt supplied by Citibank. The later authority, Heperu, applies, and restitution by NAB is not required as it would be inequitable for Citibank to recover at NAB's expense where both were innocent victims of fraud.

Court Disposition

First defendant's Cross-Claim for restitution from second defendant dismissed; second defendant (NAB) succeeds in its defence.

Orders

  • First defendant's Cross-Claim dismissed
  • Parties to bring in short minutes of order