I would have rated them minus if there was a way. Used them for the first time and only time. Sent in 24 books for £12.09. Had checked all books on day of packaging and all accepted. Collected on the 5 Feb. On the 9 Feb received email stating will pay £5.49 for 19 items. What happen to the other ones? Evidently they where old. Also something from the dearest set of books mysteriously disappeared so they didn't want them. Unless you send in first editions and in mint condition they won't even pay .10 pence. So what happens to the ones they don't want? They won't send them back, so I take it that they just got 24 for the price of 19. I also feel that their terms and conditions are rubbish. You have no recourse.