How do I add an extra payment card? September 23, 2019 13:45 Updated Log in at storebox.com or in the Storebox app and click on Profile / your name. There you can add and delete payment cards. Related articles Does it cost anything to use Storebox? Can I have multiple payment cards active on my account? How are payment cards stored? Supported means of payment Do I need to update my payment card when I receive a new one?