Watch out for fraudulent phone calls targeting O2 customers with bogus discount offers. This 'vishing' scam involves criminals attempting to gain access to your account by promising a 50% discount on your mobile phone bill. If you accept the offer, you'll receive a text message containing a one-time passcode. And if you provide this to the scammer, they can change the password on your account.
Source: Which? (20 Jun 2023)
