I am a regular customer of amazon and no much bitter experiences from them. But recently I purchased a water purifier and the received item was entirely different from which shown and described in the web site. So I tried to return it. But, then I came to know that some items will not be picked by amazon, so we have to return it on our own risk by other couriers. It gives struggles to buyers due to return, delay for waiting to refund, reorder, and many mess-ups. Since this item was very urgent for me, I was compelled to use this sub-standard item.
I think amazon is not taking any action on those sellers.