I cannot verify my account and the private support isn’t helping.

My altnernative email is no longer active and i cannot answer my security question because i forgot the answer from years of never needing it. I have tried the verification questionnaire but my account has been locked and needs a verification code now. I have been passed on twice to the private support forum which has basically told me they'll investigate it or make a new email. I have paid preorders waiting on my email with codes on the email. I Need this email back. what can i do?