The telecoms regulator has fined mobile operator O2 £10.5m for overcharging customers over an eight-year period. Ofcom said the company had identified issues with its billing processes in 2011 but ...

O2 has said its 4G network has been restored after a massive data outage which affected millions of people. "Our technical teams will continue to monitor service performance closely over the next few ...

O2 mobile network is down this morning with customers complaining that they can't make or receive calls. The UK company has now confirmed the issues with its service and has apologised for any ...

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