Instruct: Classify Amazon reviews into positive or negative sentiment
Query: False Advertising by Manufacturer

Hermell Knee Rest Wedge CushionIt was important to know what the height of this knee rest was, (as that is the most essential dimention for this type of product). Both the company's response over the phone and in their marketing states it is 11" in height. However, when I recieved it; it was only 8.5". When i called customer service, they took several days to tell me the 11" was the height of one of the triangle's sides, but not the actual hieght of elevation of the cushion!!! They refused any sort accomodation for their swindle. At $50, (with shipping), for this piece of foam; Do yourself a favor and don't get ripped off like I was. Buy the other brand for half the price which is 10" in HEIGHT. There are enough swindlers on Wall Street, we don't need it on Main Street too!