Ordered a book for class and never received my order. I contacted Knetbooks and was told that UPS marked book as delivered and because of that they have to go by what UPS states. Mind you, I lived in a locked, accessed controlled building. I was home all day on the date of the supposed delivery and I never let anyone in the building. The book was never delivered but because some random delivery person states it was delivered to my door, I am on the hook for a $100+ textbook that I never even saw. KentBooks keeps saying that there is nothing they can do. BS, they most definitely just lost a loyal customer.