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Title: Rip off
Review: In 2009 I ordered a set of 9 books and received two separate shipments with two different covers. Four books have black covers and five books have green covers. I only discovered the fraud when I went to sell them in 2012 and the buyer said I had two different editions (2007 and 2008). I thought the books were supposed to be that way but when I found out I was given an old edition I contacted Amazon but they would not fix the problem since time had passed.
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