Once an unknown email is added and set as primary, it’s nearly impossible to remove it if you no longer have access. Security systems will always require confirmation from that email before allowing any changes, even if you were the original account creator. To handle this situation, you’ll need to go through the access recovery process — which typically involves submitting identification to verify your identity. Once you’re verified as the rightful owner, you’ll be able to safely remove the other email and reset your contact information. This is the only way the system will accept it without confirmation from the compromised email.