To update your payment method sign into your RR Size Me account and then go to this page - https://www.rrsize.me/membership-account/membership-checkout/?level=1 (you can also get here by going through your back office to Billing -> Change -> Let's Get Started) Go through the checkout process and it will restart your payments on a new card. When you click on update it should take you to the registration page. It seems a little weird going through the registration page when you're already signed up, but that's the only way I can update payment methods in this system. When you fill in the fields on that page it will effectively cancel your old subscription and immediately start a new one. Everything will be pro-rated to match what you've previously paid though so you don't need to worry about being double charged.