If your subscription was purchased through the Surfline app, please head to your iTunes/Apple ID or Google Play account to manage your Premium subscription.
Your account and subscription information can be accessed via the website at surfline.com/account and using the tabs at the top of the page.
From here you can see your current subscription information, update your email address or password and change your unit settings.
You can also access your account information from the Surfline iOS app under the Account section and Manage Account. Then click on View or Cancel Subscription.
Use the drop down menu to edit your profile, change your password or view your subscription.