It sounds like you've bought the new phone as an upgrade.
@JoolsM wrote:
I just took delivery of my new iPhone 13 and tried to switch everything over. I am an existing EE customer. Put my old SIM in the new phone & did not get a signal.
Did your old SIM still work in your old phone?
I suspect that, in ordering a new SIM, your existing one may have now been deactivated. You may need to contact EE C/S who will have account access.
Can you borrow a friend or relative's phone to call instead? You could try calling using 0800 0798586 from a web-calling app such as Skype, or perhaps try a webchat session once you're logged into your myEE online account.
