O2 is closing down its pay-as-you-go data only mobile SIM services later this month. These SIMs allow you to pay for internet data which you have to use within a certain number of days. There are no ...

An O2 customer has been left baffled after having their account "shut" having seen a phone order wrongly deemend to be FRAUD. O2 has come under fire from a customer who wrote into the Guardian ...

O2 has today launched a new app that allows its customers to take their phone number onto multiple devices to make calls and texts - and we've tried it out. Using similar Voice over IP technology as ...

Millions of O2, Tesco Mobile, Sky Mobile, Virgin and GiffGaff customers have been warned they could LOSE data access after a 3G switch off this year. A new Opinium survey of 2,000 UK adults, which was ...