John Caudwell, the billionaire founder of Phones4u, has come up with an even more provocative ploy to get Britain back on track: a huge windfall tax on online businesses that have ‘profiteered’ from the lockdown Internet shopping boom. — AFP John Caudwell, the billionaire founder of Phones4u, is talking to me from the back of a chauffeur-driven Mercedes people carrier as he travels back from skiing in Switzerland to Monaco. It’s an unlikely place to hold a telephone interview in a pandemic – particularly for a vociferous Brexiteer who says he would much rather be in Britain, where he has a 15-bedroom mansion in Mayfair and a 50-room Jacobean mansion in Staffordshire.