It is the mobile network service used by millions of people around the UK. But O2 has now issued a warning to customers ahead of a major change that will stop some phones from working. The UK's 3G ...

Anyone with an older phone that’s currently connected to the O2 network needs to upgrade immediately. The popular UK provider has just issued a final warning, and ignoring it could leave some without ...

Affirm and Virgin Media O2 are today announcing a new partnership that will see the transparent and flexible payment network ...