The process of unbinding a kindle credit card (credit card): The user logs in to the Amazon official website, clicks Your Account, then clicks Manage Payment Options, finds the bound credit card (credit card), and selects Delete. At the same time, the user needs to open the kindle, click Manage My Kindle-Manage Devices, and log out of the kindle terminal device.

As long as the user follows the above process and cancels the credit card (credit card) and Kindle respectively, then the credit card (credit card) will be completely unbound.