Message from O2 (SMS)

[Megjo]

Hi there, I've had a text message from o2 (I'm pretty sure its legit as its with all the months and months of other notifications from them), thanking me for a call which I haven't made. Could this have been send in error? I've checked my account and nothing seems to be a miss. Just a little concerned.

[Cleoriff]

@Megjo 

Loads of people are having the same message today. We think it's a system error.

Don't worry about it.

[Megjo]

ah right okay.

I revieved another one from a 24141 number marked as potential fraud today claiming to be from o2.

I deleted it without clicking on anything.