cant unlink account because i dont have access to that email anymore issue

okay so i cant link my steam account, or play battlefield 6 because my steam account has been linked to an old email that has been deleted, and i cant unlink it for obvious reasons, i have spoken to ea support live chat, but they ask for the information on an email account that has been deactivated for over 5 years? like what would my phone number be back then or any associated accounts from back then, stupid **bleep** questions, last 4 digits of card number? what the one i used 5 years ago? like come on man what is this. can someone more higher up please get in contact with me coz no one else helping and i cant play a game that i wanna. one of the operators said the information was very close but a few things were wrong and that spelling mistakes could also class it as wrong, so my info was correct but he cant tell me what bits werent, stupid really, someone please help