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

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

‘Sim-swap’ fraud has affected three readers – and dealing with their mobile phone company hasn’t been easy What some O2 customers may have wanted for Christmas was a phone number, since long-cherished ...