New York, September 20: Amazon banned 600 Chinese brands for violating its review policies. Almost 3,000 online merchant accounts backed by these brands were closed by the e-commerce giant. The action was taken as part of a global crackdown on consumer review abuses, reported The Wall Street Jornal. According to Amazon, these brands were offering gift cards to customers in exchange for positive reviews. Amazon Listing Agency AMZ SEO HUB Sees Sales Soar Since Pandemic. According to a report by The Verge, some brands were offering VIP testing programs or extended product warranties. Meanwhile, other brands were offering incentives to…