Myself

[Klimentina]

Hi I can’t make a call and send the text from Friday yesterday I take a new card from yours shop but is the same problem

[MI5 Level 94: Supreme]

@Klimentina 

Check for local issues O2 Service Status

More help here including trying sim in a different phone, etc Guide: Is the network down for me or everyone? 

[Cleoriff Level 94: Supreme]

Hi @Klimentina 

Have you activated the sim?

https://www.o2.co.uk/help/phones-sims-and-devices/activating-your-sim 

All numbers for O2 are in this guide Guide: Coronavirus Community Help and Support 

[Klimentina]

Yes to have a network registered but I can't call or receive a call

[Klimentina]

Yes I try on different phones but the problem is the same

[MI5 Level 94: Supreme]

@Klimentina 

Did you check for network issues?

O2 Service Status

[Klimentina]

Yes I check the network status is good

[MI5 Level 94: Supreme]

@Klimentina 

The issue must be with your sim or your account.

Have you reported your sim lost at all?

If so, O2 will apply vars to your account which need to be lifted.

Or, your sim might be faulty as it should have been activated in store.

I suggest you go back to the store and get them to check everything for you.