Amazon calculates a product's star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers and factors that establish reviewer trustworthiness.
Ordered for a Blue Colour Cover but they supplied a white colour cover and it looks like a old one with padding becoming yellow instead of cream at places. Never expected such a poor quality product totally different from ordered one. Disgusting.