If you are creating an account for the first time you will need to verify your email address.
Once you have completed all fields when creating your account via this link, an email will be sent to the email address used on your account to verify. Please check your spam folder if you don't receive this straight away.
You will then need to secure your account by choosing a Two Factor Authentication method. When two factor authentication is enabled, you will be asked for a short code each time you log in. Choose an authenticator app, email or text message - you can switch on more than one.