Hey @OGGarcia95,
Good afternoon. Having access to control your account and its features is a must, so I can see why this is concerning! I will be more than happy to share some information on the subject.
Thank you for providing the error code you received! The possible cause is the zip code entered. You can also check out one of our e-articles about setting up your GoPhone account and activation.
Let us know if this helps!
Daniel, AT&T Community Specialist