As part of security measures, Apple locks down certain Apple ID from being misused. There could be many reasons for this action. For example, if someone tries to log in many times with your Apple ID with wrong passwords, then it leads to lock down. It surely isn't a great feeling in the world to have a blocked Apple ID. So, what can you do about it?
If you have acquainted such a problem, then sit back and relax. We have the solution to your problem. Just follow the guide to regaining control over your Apple ID. Thanks to Apple that they have a separate web page to address this issue.
How to Fix and Regain Blocked or Disabled Apple ID
Step #1. Visit iForgot.Apple.com from your web browser.
Step #2. On the web page you'll need to enter your Apple ID email address. So enter it and click on “Continue”.
Step #3. On the next screen, you can either ask to get an Email from Apple or answer security questions.
Step #4. Just follow the on-screen instructions depending on the option you choose and retrieve your Apple ID.
In most of the cases, the above process works. In any case, if the guide has not helped you, try to get in touch with Apple for additional assistance. In order to prevent such situations in future, make sure you do not disclose your Apple ID in public. In addition, have a strong password and always have two-step verification enabled.