You can update your payment details quickly online.
Just click Here to log into your account by clicking on the 3 bars at the top of your mobile and select 'UK Amazon Flex'.
Select 'Update Card' on your Dashboard and then you'll be asked for the email address that you used for your policy.
You'll receive a verification code to proceed to view and amend your card details. If this has not been received within a couple of minutes, please check that the email address you have entered is the one you used on your policy.
You will then be directed to a payment page, where you can submit your new default payment details. Once this has been updated, just sign out to be taken back to your dashboard.