You can add or update your credit or debit card information by beginning the donation process. After you select your donation amount and you reach the “1-Tap Give Now” screen, tap Use Different Payment at the bottom right corner of your screen.
You will see the cards associated with your Givelify account. Tap New Credit Card and add the credit or debit card number, expiration date, and security code.
If you want the new card to be your default card, go to My Wallet. All of the cards associated with your account will be listed. From here you can delete any cards you no longer wish to use by tapping Delete, or set your preferred card by tapping Prefer.