Can't make calls

[Hubbtone]

I can't make any calls on a brand new iphone 15 pro.  I can send and receive text messages, but can't make calls, which means I can't call O2.  I can call my wife, but she is down as an emergency contact.  

[jonsie]

We’re just customers like you but it sounds like you’ll need someone to access your account which can’t be done from here. If you message O2 using the links below, they should be able to help you with this
or give them a call on 202  or 0344 809 0202