please I need help

What to do before selling or giving away your iPhone, iPad, or iPod touch - Apple Support

if you forgot the appleID https://iforgot.apple.com/password/verify/appleid#!&section=password

or show up on an official apple store with proof of purcahse

otherwise you will not be able to use the phone

I want to know how long the apple company to unlock a apple ID? I have a apple id has lock three months ago,but it unlock now!