I did find how to change the payments; click on one of the payments you want to change > scroll to the bottom of the page > click on the Resolution Center link > click on Payment Manage link. This will take you to My preapproved payments page. There will be a list of all the apps and websites that you have given permission for PayPal payments. Click on each one that is active that you want turned off and and click Cancel. Then the next time the app or website needs payment, you will have to log onto PayPal and select your bank account or a credit card on file for payment.
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