How to reactivate my apple account

If you had requested from Apple to deactivate your account before, you can request to activate it again.

After your deactivation request went through, you should have received a unique alphanumeric access code. You need to contact with Apple Support with that code to activate your account again.

Hope this helps.

How to deactivate your Apple ID account - Apple Support

If you didn't deactivate the account, contact Apple ID Support for assistance.  See the Apple Support articles below for contact information.  

Apple ID - Official Apple Support.   -

Contact Apple for help with Apple ID account security - Apple Support.  *   (Link doesn’t always load)  

Get Support      -    Work through the screens to get a chat option. You may have to pick a slightly different problem.

Apple Support schedule phone call.   -

If necessary, use Twitter or Messages.

Apple on Twitter     

Messages chat with Apple  

From the Apple Support article below. 

Without proof of your identity via security questions and other carefully selected criteria, Apple Support can't help you reset a password or perform any other actions on your account. These policies are audited and reviewed on a regular basis.

Security and your Apple ID - Apple Support.      *