I used Wordery UK via amazon so I had a tracking number to prove no delivery. My delivery problem was to be solved by Wordery Canada because I made the mistake of asking for the book again and not a refund. Still no book and they do not give tracking numbers. With Amazon you have a large company and an account to fall back on. Get the refund with Amazon. I t may not be Wordery 's fault for the postal loss(Covid?) but they have lousy follow up. Good book listings but bad service.