The Duke of Cambridge and Prince Harry’s favourite nightclub has been caught on video attempting to deceive its high-end clientele by filling £360 bottles of Dom Perignon champagne with cheap Prosecco.

Staff at the glamorous West London nightclub Boujis have been discovered selling £9 Santa Eleni as the rare vintage champagne.

The club was also found to be filling bottles of Belvedere and Greygoose Vodka – which it sold for £260 – with Imperial vodka, which retails at just over £10 in most supermarkets.