Forgot Apple ID but only have rescue email address
Hi,
My wife created Apple id for my brother in law in 2015. Unfortunately, one day my brother in law accidentally forgot his passcode and locked his iphone. The only thing that left with my wife just her email as rescue email. She don't even remember what apple id, email, first and last name she created last time for him.
Anyone, please help.
Thank you.
iPhone 4S, iOS 9.2