How can I unlock my iCloud account?

How is it locked?

What exactly is happening?

Please do not post personal info in a public forum.

Start here ➜ If your Apple Account is locked, not active, or disabled - Apple Support

You will need to provide more information on what you are referring to or any messages you see on the screen. As always, NEVER provide any personal information of your device or your account. A Carrier Lock can only be removed by the cell provider that locked it, Apple or anyone here cannot help you with that.