First, sign in to the My CenturyLink app. Once you've signed in, select My Bill from the main navigation bar at the bottom of the screen.
In the Billing Preferences section of the screen, click the toggle that says "Paperless Bills." If the toggle is green, then paperless billing is turned on. If the toggle is gray, that means that paperless billing is turned off.
Once you click this toggle, you will be taken to a Paperless Billing screen. Take a moment to check the email address that is shown there. This is where you will receive your billing notices. Need to correct it? Click "edit" to change it.