The administrator is responsible for creating your Snagstream account. Once this is done, you will receive a welcome email titled "Welcome at Snagstream". In it, you will find a link with which you can create a password for your account. Your email address is same the email address you received the welcome email on. Once you have created a password for your Snagstream account, your account is activated and you can use it to log in to the Snagstream App and on the Web.
CAUTION! The link in the welcome email is valid for 48 hours. Has the link expired? Go to the login page, <domain>.snagstream.nl, and click Forgot password? You will receive an email with which you can reset your password. This email is valid for 30 minutes.