Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Seller sent wrong book....

...once I received the item, it was definitely the wrong book instead of the one I ordered. Instead receiving of MCSA/MCSE 70-291 for Server 2003, I got SQL Server 70-444. The Seller was able to reply to me in the usual 2 business days, apologized and corrected this mistake on their end with a full refund of cost as well as letting me just keep the wrong book since they did not have the book I ordered in stock. Which cut out the hassle of having to ship it back and wait for processing to get my refund. I won't need to buy another book for a while for my MCSA, but hopefully they have the book in stock when I order from them again.