To change your email address, sign in to My O2 from a computer, laptop or tablet and follow these steps:

  • Select ‘Manage my details’. If you’re in the My O2 app, go to ‘Manage your account’, ‘View all’ and then ‘Manage my details’.
  • Select ‘Change my username’ under ‘Sign in details’.
  • You’ll be sent a code to your phone.
  • You’ll then be able to change your email address.

If you’re not able to access the old email address, please contact us.

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