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 ...

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 ...
The Guardian

O2 was tricked into transferring my number to fraudsters. Could I have it back?

‘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 ...
Stuff

O2 TU Go lets you use your own phone number for VoIP calls

O2 has launched a new VoIP service, O2 TU Go, which puts your mobile number in the cloud – so when you receive a call to your O2 number, any device with the free app installed will ring, whether it’s ...