By Martin Lewis, February 7, 2008
There is a way to save hundreds of pounds a year on your mobile-phone bill, and flog any upgrade you get to earn some extra in cash on top. It is all about taking advantage of mobile-phone companies’ desire to keep your custom. They will throw serious cash at anyone who threatens to leave their network. But you have to push to get the best deals. If you are close to the end of your mobile-phone contact, call up your network and ask what deals are available. Often, they will just offer you their standard list of accessible tariffs.