Can’t make outgoin calls

[Django]

I paid my wife’s phone bill Sunday it’s on my o2 account and it still hasn’t been turned back on can som1 help ASAP as she needs her phone for work

[Bambino]

@Django Your wife needs to call customer service to get any bars removed from the account. All available numbers, and how to use Skype to call are here: Guide: Coronavirus Community Help and Support 

Because you're not buying anything, O2 doesn't consider your call important, so use the Lost/Stolen or Fraud option if you have to, to get through. Otherwise you'll just be disconnected.