Application issues

i am having issues making a UC account for applying to University of California schools, everytime i try to make an account it keeps telling me “i must enter a valid email” but the email i used is correct as i have used it for common app. i contacted UC but i havent heard back from them in over a week and the deadline is nov 30. any advice

Try a different email.

I have and i keep getting the same message

Call the UC Help Center. They always answer!
(800) 207-1710 (within the U.S.)
(925) 298-6856 (outside the U.S.)

Is this the main thread for UC App issues? Under 10th Grade English options, H English 10 AB is not a valid option only H English 9 AB or non honors English 10 AB.