O2 issues new text and email alert urging customers to 'call three-digit number'

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

O2 is urging customers to 'call three digit number and contact bank' in new alert

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