They use similar deceptive practices with Audible. You can't cancel your account without losing the credits you have already paid for. I believe this works so w

They use similar deceptive practices with Audible. You can't cancel your account without losing the credits you have already paid for. I believe this works so well because people wishing to cancel probably have unused credits but when they go to actually cancel they will have to think twice before giving up their credits or searching for some books they want and then cancelling.