On the organization's donation page (i.e. ([nonprofitname].wedid.it), Scroll down and from the bottom right corner of the page, click the 'Login to manage my donor account' button.
Enter your login credentials...
** You can find your login credentials from the email we sent you after your first donation with the subject "transaction history access".
* choose "forgot your password" to reset it, if you don't remember your password or can't access the email that includes your system-generated login credentials.
Then in the "Contributions" section of your donor account, locate the donation with recurring payment activated, and click the 'edit' icon to update the credit card info associated with that recurrence.