ContactNow: How do I change the billing details on my account? Last updated Save as PDF Share Share Tweet Share Loading...Check out our upcoming webinars and get the most out of your 8x8 services!For faster support help, start a chat!Looking for user guides and product manuals? Click here!PrevNext Applies To ContactNow Billing Details Procedure Log in to ContactNow. Click Configuration. Click Billing > Billing Details. Edit desired details. Click Save.