I keep receiving a one-time passcode to but haven't asked for one, should I be worried about fraud?

[MR1]

I keep receiving a one-time passcode but haven't asked for one, should I be worried about fraud?

[madasaf1sh · Accepted solution]

@MR1 

If anyone calls you do not give it anyone, and make sure you change your password on my o2.. 

Also have a look here https://www.o2.co.uk/help/safety-and-security 

[Bambino]

@MR1 Block the number sending you the passcode and report it free to 7726 

How to block a number:

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

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