To update the card on file for your account start by going to http://fundly.com/connect and logging into your admin account.
Next, from the Navigate To menu, select My Account from the right most column.
This will take you to the Account Info page which will contain the details for your account, and where you can upgrade services.
To change the card on file scroll to the very bottom of the page and click on the Update Card button.
This will expand the section allowing you to enter updated credit card and billing information.
When complete, click on Save.