Greek businessman Achilleas Kallakis, known on the international poker circuit as 'The Don,' had his UK jail term for fraud increased to 11 years by an appeals court, in a victory for prosecutors who said his sentence was too lenient.

Kallakis and conspirator Alexander M Williams used "determination and audacious dishonesty to commit a commercial fraud with international proportions," Judge Christopher Pitchford said in a ruling increasing the sentence.

Kallakis, 44, was imprisoned for seven years in January when he was convicted of tricking banks including AIB into lending as much as £740 million and using the money to pay for trophy property, private planes, a yacht in Monaco, luxury cars, helicopters and artwork.

Corker Binning, the law firm representing Kallakis, didn’t immediately respond to a phone call seeking comment.