Mobile phone network operator O2 is urging customers to call a three-digit number and, if necessary, contact their bank as ...
Mobile phone network operator O2 is encouraging customers to dial a three-digit number and, if required, contact their bank ...
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 ...