Adobe contact information - http://helpx.adobe.com/contact.html
Chat Now button near the bottom for Activation and Deactivation
Welcome to Adobe Forum,
I understand that you would like to re activate the CC purchased on Aug 20, 2013.
please contact our support team regarding your inquiry at http://adobe.ly/yxj0t6.
By working directly with our support team we can verify your account and review it's details.
You may also want to review Manage your membership and payments | Creative Cloud - http://helpx.adobe.com/x-productkb/policy-pricing/membership-subscript ion-troubleshooting-creative-cloud.html. & update the billing details once again to Re activate.
1800 833 6687