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 ...

O2's summer sale is in full swing with several of its SIM-only and mobile plan offerings reduced in price. However, savvy shoppers looking to get the best price possible will want to take not of ...

Customers with the four major UK mobile networks EE, Vodafone, Three and O2 have been warned to brace for higher prices from April 1 - even if you are mid-contract. A new rule put in place by ...