Hello, 3DFX_VooDoo- Hello, and thank you for reaching out on the Xfinity Forums. We understand how important it is to make sure your payment information is up to date, and I’m happy to help guide you through it. To update your Xfinity Auto Pay method, please sign in to either the Xfinity app or xfinity.com. From there, go to Billing (or Manage Billing) and select Manage Auto Pay. You’ll have the option to add a new credit card or bank account and set it as your default payment method. Please note that this change can be made by a Primary or Manager user on the account. If you’re running into any trouble, I’d love to help troubleshoot with you. What device are you using? Also, have you had a chance to try clearing your browser’s cache and cookies to see if that helps?