According to a Daily Mail investigation, in spite of Amazon coming down heavily, sellers on the platform still continue to purchase fake reviews for around 15 euro each (about Rs 1,200).
The companies selling fake reviews to sellers rely on an army of "testers" who buy the products to post the four and five-star reviews online, the report said.
In addition to a small fee, the testers get the refund for the cost of purchasing the products. By purchasing the products by the testers, the reviews they post get classified as "Amazon Verified Purchases".
One such review firm, AMZTigers of Germany boasts of deploying 3,000 testers in the UK alone.
"We help you get verified reviews from real people. Our more than 60,000 product testers throughout Europe specialise in writing reviews quickly and reliably," the website of the company said.
Amazon that is committed to protecting the integrity of reviews had alone spent 300 million pound in the past year to protect customers from abuse, fraud and other forms of misconduct.
"Our objective is to catch and remove abusive reviews before a customer ever sees it and in the last month, over 99 per cent of the reviews read by the customers were authentic," an Amazon spokesman was quoted as saying.
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