People who have contracts with O2 are being warned not to 'answer the phone' to potential third-party callers after a customer who had been with the provider for years had their contract axed against ...

A warning has been issued to O2 customers after a customer's contract was cancelled - against their will. An O2 customer has written into the Guardian's consumer Q&A agony aunt section, revealed how ...

Swedish phone maker Doro, which makes classy mobile devices for the senior mobile market, has signed a network deal with O2 in Ireland. O2 will now sell the PhoneEasybw on its network, a stylish ...

A new warning has been issued to millions of people with a monthly mobile phone contract with O2. Martin Lewis warns that up to 15 million customers could see their monthly bills rise by more than the ...

A man who was a victim of identity fraud said he began "dreading coming home" in case bailiffs had visited. Dean Allen, from Colchester, received enforcement letters from 02 after his details were ...

The UK's media regulator has criticised O2 for raising its prices by more than it promised customers when they took out their phone contracts. Ofcom said it was "disappointed" with the firm, and said ...