Instruct: Classify Amazon reviews into positive or negative sentiment
Query: backpack rating.

My experience was HORRIBLE. They sent me the WRONG backpack(pink instead of black) and they refused to reimburse for shipping and return shipping, even though it was their fault. Amazon eventually gave me a credit to use for their website only, but I do not want anything from them. I will never do business with either of these companies again, because they do not care about the customer.