Our guest today is one of the UK's most recognized self-made billionaires. The founder of Phones 4U was one of the first Brits to sign the Giving Pledge promising to give away at least 50% of his wealth, is an advocate for climate action, and calls for a gambling tax to combat "mayhem in society". A passionate developer, he turned a landmark hotel on Cap d'Antibes into a €340 million euro residence. Meanwhile his Caudwell Children charity, which aims to make life fair for disabled and autistic children, celebrates 25 years with its Butterfly Ball in Monaco. Meet John Caudwell.

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