Audible have failed to advise customers of their returns policy. I return less than 1 in 10 books and only those I don't complete but I have now been threatened that they will not allow me to return anymore. This is contra to their advertisement of returning any books you don't like. Customer service has failed to respond to 5 separate emails asking for clarity and just sends a generic response. So suggest that you only purchase books that you 100% know that you'll like and won't want to return.