Simply go to atmosphere.com/login and use the email and password that you created when signing up. Once you are logged in, navigate to the Account section where you can manage your profile and billing settings. Select Billing tab at the top and you will see the option to upgrade via billing portal. Upgrading will begin a 7-day trial period for you to test out your new subscription. After that, you will be billed on a monthly or annual basis (depending on what you chose).
Having trouble? Let your Account Manager know or email us at help@atmosphere.tv!