Thank you for your support. To update your credit card or bank info, please go to WAMU's online donation form. It looks like you’re becoming a member again, but it will sync and update the information on your record. However, if you are making the change online after your regular monthly payment has already been processed, there will be a second charge to your account since the new gift automatically charges to reflect the change.
Moving forward, your update will sync with your existing record and only process the updated sustaining gift next month and each month thereafter.
Alternatively, kindly call our 24-hour number at 1-800-248-8850 to update your credit card or bank info.
Many thanks again for your continued support!