Someone icloud locked my son's iphone 6. The Apple ID they used is gotyou@yahoo.com. I am trying to sell the phone but can not set it up due to their icloud lock. My son knows multiple people who had their phones locked while at a party in chicago.
Doesn't Apple track when dozens of people had their phones icloud locked by a know hacker? Hacker's Apple ID was gotyou@yahoo.com. I bought the phone years ago and do not have a receipt. Thank you in advance for any advice.
iPhone 6