Ticketmaster has agreed to making a major change to its sales rules after an outcry over 'rip-off' Oasis reunion tickets sparked a watchdog probe. The ticket selling behemoth was criticised by the Competition and Markets Authority (CMA) following claims it sold 'platinum tickets' at two and a half times the price of 'standard' ones - despite them being the same. Oasis fans were also not told that ticket prices for the Britpop legends' reunion gig would rise as cheaper option sold out. Follow @This Is Money for more #oasis #ticketmaster #dynamicpricing #concert #tickets