NFL SUNDAY TICKET STUDENT

I ENROLLED AS A STUDENT LAST YEAR FOR NFL SUNDAY TICKET, EVERYTIME I TRY TO ENROLL IN THE SAME SCHOOL AS LAST YEAR IT STATES NOT VALIED, MY ACCOUNT IS STILL ON RENEWAL EACH YEAR. I NEED AN EMAIL ADDRESS THAT I CAN UPLOAD MY SCHOOL PROOF-ID, CAN ANYONE PLEASE HELP WITH A VALID EMAIL ADDRESS? SO, I CAN CORRECT MY ISSUE ?

THANK YOU

Danny M