The name on my account/certificate is spelled wrong
Sorry to hear that. In all likelihood, someone registered you for training and made a typo on the registration form. To change it, click on your avatar/name/username to access your account menu. This little icon is located in the bottom left of your training portal.
Then, click on Your profile.
From there, you should be able to edit your profile. Or you can use this quick link: Edit your profile