All three hotel groups deny breaking competition law but if they are found guilty of price- fixing they could be fined up to 10 per cent of their turnover, which could cost them millions. The investigation comes after a whistleblower contacted the OFT when rooms at the five-star Radisson-owned May Fair hotel in London were advertised on three popular travel sites – Expedia, Travelocity and Booking.com – at identical prices. The companies were charging £204 – the same as the hotel’s website – which the whistleblower claimed was not a coincidence, but an attempt to fix prices for tourists. Get the full story at the Mail Online Read also "Hotels: price is the same unless you’re a star" at the Telegraph