How to enable Apple ID in iTunes and App Store
How can I enable my Apple ID so I can use the iTunes Store n App Store
iPhone 6 Plus
Question marked as
If it's disabled/locked try try resetting its password (and then logging out and back in everywhere) : If your Apple ID has been locked - Apple Support
If that doesn't fix it contact iTunes Support in the country where you are (and which is therefore the country on the account) and see if they can/will re-enable it : http://www.apple.com/support/itunes/ww