Have you checked your spam folder? The verification email is sent from firstname.lastname@example.org. It’s a good idea to add this to your address book and safe sender list (or ask your school network administrator) to ensure our emails reach you.
You can ask for the email to be re-sent to you on the Login screen. Enter your details and then click on ‘Re-send email’.
If you entered an incorrect email address when creating an account, please sign up again with the correct address.