Telephone-based scams are seemingly becoming more commonplace, with countless reports coming in of unsolicited callers claiming to be from mobile networks - offering free upgrades and tempting ...

Here's an interesting, if somewhat unusual, approach to helping customers: European mobile service provider O2 is rolling out a "Tweetserve" program to provide assistance to users on Twitter. Once you ...

Have you got a money concern you'd like to talk about? Whether you've been ripped off by a rogue retailer, a dodgy firm or mistreated by your bank, we'd like to hear from you. Mirror Money's Emma ...

A warning has been issued after O2 "shut accounts" after wrongly decided phone orders were FRAUD. O2 has come under fire from a customer who wrote into the Guardian newspaper's consumer affairs ...