Seller on Abe Books, Irish Booksellers, regularly does not ship items. They claim they "don't have a tracking number". I think they just hope customers forget that they made the orders! When I demanded a refund, it was a huge hassle. They refunded the cheaper book but kept the money for the more expensive book. Eventually, they made the refunds but KEPT THE TAX charged on items that they never even shipped! I made a dispute with my credit card company and got full refunds for both items. The question is: Why does Abe Books continue to allow this "seller" to try to scam people on their platform?