If you're an Amazon-billed subscriber, you can update your payment information directly through Amazon’s website using either a computer or mobile device.
Follow these steps:
Go to www.Amazon.com.
Navigate to Manage Your Content and Devices.
Select the Preferences tab.
Under Digital Payment Settings, click Edit Payment Method.
Choose an existing payment method from the list or add a new one, then click Continue.
Once updated, your new payment method will be available for future purchases on Amazon.com.
Not sure if you’re billed through Amazon?
You can verify your billing method by going to the ABCmouse Classic Parent Section > My Account > Billing page.
For additional support, contact the Amazon Customer Support Team through Amazon Pay Help.