LONDON, ENGLAND - DECEMBER 06: The company logo is reflected in a mobile phone screen as shoppers walk past a branch of the o2 mobile network store on December 06, 2018 in London, England. The mobile ...

Ofcom has warned O2 that it must increase its 3G coverage by June or pay a penalty equivalent to £40 million, but O2 claims it will meet the regulator's target. When five operators bought 3G licences ...