When I sign up for a subscription-based service, I'm notified when my subscription is about to end or renew. Amazon is the only business I know which doesn't do this. If you cancel your Prime membership, it actually changes the option to be notified of such a thing, you have to set it again. This is an anti-consumer practice and simply should not be allowed. It is the only setting which does not remain in-tact. This is entirely intentional as the setting has no use when you are not a Prime member, meaning there is no reason for the user to change it once they have set it.