Just joined O2 are these texts genuine?

[Bringonthepitchforks]

I'm really nervous about scams and having never been an O2 customer before am wondering why my phone set up messages are coming from 2 separate numbers.

One comes up as O2 UK and the other O2-UK. Are they both genuine or one fake? I've looked on Google and can't find an answer!

I can't sww any screenshots, if you've uploaded them, but I'm with O2 and the texts i have come from O2UK or O2Roaming

I've just looked I have the following all from O2 for various things I know are genuine
O2UK
O2 UK
O2-UK

O2UK was their equivalentof junk mail
O2-UK was a security code for setting something up when I first got this phone.

So it looks like they are genuine. Thank you.