I am in the i cloud back up to restore the purchase I keyed in many time said wrong password and has been lock

Hey Kevinsiah,

We'll be happy to assist with your account so that you can restore iCloud. The Apple ID password should be the iCloud password. If it is saying that it's incorrect, then you will want to follow these steps to reset it: If you forget your Apple ID or password - Apple Support.

Cheers.