To update the card and/or billing information that you use to pay for your Shift4Shop service, please use the following steps:
Log into your Shift4Shop Online Store manager.
Look towards the bottom of the left navigation menu and click on the $ icon at the very bottom.
Then, click on the Update Billing & Credit Card Information button located at the top right of the page.
Fill out the form as needed and click Submit to set your new billing information.