To edit a credit card as an organization, go to donorbox.org and log in to your organization account by clicking the Org Login link at the top of the page.
Once you are logged in, click the Recurring Donations link. You will see a list of all recurring donation plans for organization. Click the Edit button to the right of the donation plan that you wish to edit (see image below).
To change the payment information, click the Update Payment Method link.
Enter your new payment information, and click Update Card. Once that's done, you're all set!