Log into stripe
Find the Customer - type name in Search window
Select Add Card (Above the Cards Section)
Enter the new information
Select More Options and Fill in Name if not already populated
Click Add Card
Click "Delete" by the old card
Select "Delete Credit Card"
*After you change the Credit Card information for a customer you will need to pay an invoice that had failed due to the declined credit card.
Paying Unpaid Invoices: