Calls

[Lila]

Hi can’t make calls abroad why ? 

[pgn]

Where 'abroad', @Lila ?

Have you rebooted your phone or tried a manual search for a network?

https://www.o2.co.uk/international/using-your-phone-abroad

Guide: Roaming MegaGuide 

[Oxonian]

Or do you mean @Lila that you are in the UK and that you cannot make calls to overseas locations ? ❓