On abebooks I clicked "UK sellers only". Bought 2 books from this shower. Tracking 3 weeks later said one was in Illinois. Asked GreatBookPricesUK to confirm source of book and estimated delivery. 24 emails later I have never had an email that addressed my question. They auto-send you an email with no relevance to your question. 23 emails later I received two books, returned one, and got the refund, today. 7 weeks of unanswered emails. You send them a support question online: "I returned this book 2 weeks ago, here is the tracking proof of delivery, where is my refund?" and you get "We use a variety of carriers blah blah blah". Repeat endlessly. You never hear from a human. If you are crazy enough to ignore the reviews here, only buy using a credit card that will be obliged to refund you when things go irretrievably wrong.