I have changed my device so how do I change these details on my account

[Norm1]

I have bought a new phone but can't change the details on my 02 account 

Admin Edit: Removed bug additions from title

[Cleoriff · Accepted solution]

Hi @Norm1 

It should update itself over the next few days in My O2.

Otherwise call O2.  All numbers are in this guide

Guide: Coronavirus Community Help and Support 

Advice from an O2 Guru regarding a way to get through:

When you call, you will be asked for the reason you are calling,

Stay silent for 15 seconds and you will be taken to the keypad options.

Press 2 for Everything Else

Press 5 for More Options

Press 7 for Anything Else which will put you though to an advisor.

Press Upgrade, Lost/Stolen or Fraud if you have to.

8am is the best time to call

Admin Edit: Removed bug additions from title