Your login for university.zendesk.com is different from your Zendesk system login.
To access Zen U, just go to university.zendesk.com. Browse our courses. Then, when you find one you'd like to enroll in, select it for your shopping cart. You must do this whether there is a fee for the course or it's free.
If you don't yet have an account, the system will prompt you to create one. Once you do that, you'll be redirected back into the system.
If you do but cannot remember your password, simply click reset password on the right-hand side of the login page. The system will send you a temporary password and take you to the page where you'll create anew password for yourself.