To change the credit card used for your donations on Public Good, just login to your Public Good account, then click on your name in the top right corner to get the drop down menu. Choose “My Profile.”
On your profile page, choose “Settings.”
Click “Payment Settings” on the right, and the last 4 digits and expiration date of your current credit card will be displayed. Simply click “Replace credit card” and enter the new card information.
Click “Save Credit Card” and voila! your payment information has been securely updated.
You can also access your payment information by clicking on the "Donations" tab in your profile and then clicking on "Update credit card information"