Updating payment details
If you administer an org subscribed to a paid version of Koan, navigate to Manage Organization > Billing and click "Change payment info".
Enter your new card, click 'Update Card', and you're good to go! Note that if you're on a custom Koan pricing plan, you may need to work with Koan support to update billing details.
Note: Only admins will have access to the billing settings.