Contact by a supposed 02 agent

[amac]

I’ve just been contacted by a supposed 02 agent with an overseas number and a line so faint she sounded like she was calling from the moon. Was this legitimate? 

[Bambino]

@amac Probably not. If they were offering you a big discount on your contract it was most likely a scam call.

Block the number and report it free to 7726.
Don’t open any links or enter any information if they call again.
O2 advice here:

https://www.o2.co.uk/help/safety-and-security/phishing-and-smishing-advice
https://www.o2.co.uk/help/safety-and-security/unwanted-calls-and-messages
https://www.actionfraud.police.uk/

How to block a number:

https://www.samsung.com/us/support/answer/ANS00062352/

https://support.apple.com/en-us/HT201229