Sign in to your Amazon account
Go to Account & Lists
Select Prime Membership
Click Manage Membership
Choose End Membership
Follow the on-screen prompts to confirm cancellation
Check whether you are eligible for a refund
If eligible, request a refund during the cancellation process
Contact Amazon Customer Service if the refund option does not appear
Review your bank or card statement for the refund after cancellation
Confirm that auto-renewal is turned off