I sent in three perfect books (bought years ago and never read) and all three were rejected with no explanation. When pressed for an explanation, all I got was a generic response about possible reasons, and not a specific reason. When further pressed, the list of generic responses was reduced, but a satisfactory response was not produced. These were three near new books, and in no way should be rejected. In addition their "terms and conditions" mean that they "responsibly recycled" and can not be sent back. So in the end, they stole my books and did unknown things with them without any explanation. If they would provide pictures of the received books and cite the specific reasons for rejection, then it would be understandable, but not being stonewalled and then not returning the books is an unacceptable practice. Would not recommend this company.