Hello, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.
Sorry to hear you’re having trouble.
This does not work from the kindle itself. It is best done on amazon.com from your computer.
There are a few easy steps to fix this though.
First, go here:
there you can be sure your card/bank info is correct (right address, valid expiration date, etc)
From there, go here:
On this page, click on the SETTINGS tab at the top right,
then you can from there set a default card to be used for one click purchases on the kindle.
Under Kindle Payment Settings, click on the Edit Payment Method button, and you can set the card you want used for your kindle purchases.
After that, reboot the kindle by pressing/sliding and holding the power button for 20+ seconds, and it should operate normally from there.
Per the terms of the site, you are charged the agreed amount upon corresponding with me. This is an ongoing conversation however and is refundable.
Did you complete all of the steps I specified?
If you're still having trouble or weren't able to follow these exactly, I can help you to do it remotely.