There are a lot of these sites that give you free or cheaply priced products in return for a review, the reviews help that product listing appear higher in the

There are a lot of these sites that give you free or cheaply priced products in return for a review, the reviews help that product listing appear higher in the Amazon search listings. There's often no requirement to disclose you got the product for cheap or free. I suspect this is Amazon's way of policing it.