Locked out of Ipad 4
My Ipad 4 is fully functional, but the settings are locked to my little sister's old icloud email address. We are unable to access the email address account as it was an old school email which is now shut down. Because of this, we cannot do forgot forgot password or account details etc, and my sister has no idea of the details.
My brother spoke to apple previously and I believe they didn't seem to have a solution.
Is there anyone who can help with this issue?
iPad (4th gen) Wi-Fi + Cellular