The consumer organisation "Which?" claims that almost 20 million UK mobile phone users have never switched to another provider, and could be missing out on valuable cost-saving offers. According to the organisation's cost-comparison website, while 5.3 million subscribers have saved money after switching networks, another 20 million have remained loyal to their service provider for the "sake of convenience." Tom McLennan, of the group, said: "If you have been with the same mobile provider for years, the chances are you could find a better deal elsewhere. With so many tariffs out there it pays to shop around, either through a comparison site or by checking out what different networks have to offer." Article