How To Remove Card From Amazon Prime. On the amazon website, sign in with your amazon account. Tap on ‘end membership and benefits:

Scroll down and tap on ‘do not continue’ option next. Click on “end membership and benefits“. Doing so will take you to.
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This Will Take You To The End Your Amazon Prime Membership Page.
Here’s how to remove your credit card detail in amazon aws. Log in to your amazon.com account. To add a payment method, select the add a payment method link under the category that you want to add.
Otherwise, Your Subscription End Date Displays On The Confirmation Screen.
Click “payment options.” click on the payment method you want to remove. To remove a payment method, tap the “delete” button under that method. Click edit under the card name.
Select The “Manage Payment Options” Entry, And You’ll See A List Of All The Credit Cards Currently Attached To Your Account.
It's a yellow button near the top of the page. Click the arrow next to the card you want to delete. Under wallet, choose the corresponding card, and then click edit.
In The Black Band At The Top Click On “Account & Lists”.
Click “payment options.” click on the payment method you want to remove. Now, auto renewal has removed from amazon prime account. You should see this next to the edit button.
To Delete Payment Methods From Your Amazon Account Follow The Steps Below:
Tap on ‘membership and benefits’ option. Lastly, click the close my account button below that. In your account, select your payments.