As well as resetting its password did you also do :What to do after you change your Apple ID or password ?
If you did, contact iTunes Support : http://www.apple.com/support/itunes/ww or https://www.apple.com/emea/support/itunes/contact.html
As well as resetting its password did you also do :What to do after you change your Apple ID or password ?
If you did, contact iTunes Support : http://www.apple.com/support/itunes/ww or https://www.apple.com/emea/support/itunes/contact.html
How to enable your Apple Id