Recently new sellers from Ch ina are selling in amazon and they are buying reviews when you click on their review and click on the customer profile you can see multiple customers of them are reviewing their all items and reviewing same item of different seller meaning it might be same seller with multiple accounts , when we can easily see this how come amazon is not able to use software to ban such sellers who are destroying work of old sellers who got reviews in genuine way!! on top of that how come these new sellers who are suddenly activating advertisement their products are coming on top of our ads when we activated them sincea long time????