Pierre Rolin, 56, allegedly exchanged the cheques for gaming chips at the Clermont Club in London’s Berkeley Square, but it is thought that he did not have enough money in his account to pay them – reports The Daily Mail.

The casino has now launched a High Court action to try and reclaim the money and is also suing the financier for almost £5,000 in interest.

In July of this year, Mr Rolin was embroiled in another High Court action, after being accused of siphoning £30 million from a Middle Eastern billionaire’s property fund, using fake invoices.

At the time, the French-Canadian managed £4 billion of assets for the Gulf client through his company, Strategic Real Estate Advisors (StratReal).

Although he denies the allegations, according to court papers, Mr Rolin admitted ‘arranging for unauthorised advances to be made to him over the past two years in the tens of millions of dollars’ during a conversation with a business associate.

In November last year, StratReal went into administration after losing the business of an investor who generated 95 per cent of its revenue.

In a further scandal, earlier this year, Mr Rolin ended his relationship with art consultant Helen Macintyre after allegations emerged that she had been conducting an affair with the London Mayor.

Initially he believed Ms Macintyre’s daughter was his child, but became suspicious after he noticed she had red hair and blue eyes when he is dark haired. A DNA test confirmed his suspicions and proved he is not the father.

Ms Macintyre has reportedly told friends she is in no doubt that Mr Johnson is the father of her daughter. The politician has said he is willing to take a paternity test and would provide financial support if it is his child, although he is yet to be asked.

A colourful figure in London property circles, Mr Rolin also runs a charity called StratReal Foundation and regularly donates to the Conservative Party, giving over £88,000 in recent years, including £12,000 in February after StratReal folded.