If AppZone shows you a message that your account isn't verified yet, please check your mailbox and confirm your account by clicking the confirmation link in the verification email from AppZone.
I cannot find an email from AppZone
Make sure that the verification email from AppZone isn't in 'Spam' folder. Click 'Re-send confirmation link' on your 'Apps' tab in AppZone and check your mailbox again.
I haven't received an email from AppZone/Facebook authentication
This could happen if you've chosen Facebook as a login method. If your Facebook account doesn't contain information about your email address, we won't be able to send you a confirmation link to your email. In this case, you should contact Facebook support team and ask them to verify your email address.
Which troubles can you experience because of this issue:
You won't be able to redeem gift cards before you verify your account.