I couldn't find anything online for changing email addresses or passwords either. On the top right you will see your old email address (firstname.lastname@example.org). Click that link and you can make the changes to your account there.
I have changed email services and would like to change my Sling account profile.
I have searched the sling.com website and any links that reference the subject I am interested in return a 404 error.
Is there a way to change my email address in my account profile?