Like many people, I had my Apple ID locked last night, and it was a big hassle trying to get it unlocked and working again.
One tip - when you go through all the rigmarole to get it going again, one thing that doesn't switch on by default is receiving iMessages or FaceTime calls via your Apple ID. So, like me, you will probably be missing messages until you reenable those in Settings. Also, if you send somebody a new iMessage it will default to your phone number which may not be what you want.
