I also am having this issue. I haven't played Madden in years, yet my Playstation ID is still connected to an old email that doesn't exist anymore. I clicked forgot my password and they must have reset it to a temporary random password and now there's absolutely no way I can get into it.
Tell me this, if I can log in to MY PS4 ID, that is LINKED to an old email account, then why can't I just change the email address after I have logged in to my PSID? Now I have wasted money on this game. This is the worst example of customer service I have ever dealt with in my life. I just want to play a GD video game for crying out loud. Not take out a friggin' bank loan.