Amazon India — Terrible buying experience with Amazon India

Hi, I mostly buy gadgets online from reputed portals like ebay, snapdeal etc. This is my the third buying experience with amazon-india and has been a terribly frustrating one. I ordered a AMD Athlon II X2 270 processor two weeks back from the seller "ecomputerbazar". No shipment even after a week.. I sent emails to the seller repeatedly.. no response.. and at the end of a week, the order got cancelled by amazon.. My one week gone in waiting. I placed the order again with a different seller "Dolphin System Technologies"; the order again stays 'preparing for despatch' for a week; n number of emails to the seller; contacted amazon customer support and they too sends emails; but the seller doesn't bother to respond. At the end of another week, the order gets automatically cancelled again. I had to wait two weeks on an item, that I could have bought readily from elsewhere. This has been a very frustrating experience. It seems like any dumb seller can list anything on amazon - even an item the seller hasn't seen with his own eyes; And in the end, the order gets cancelled if the seller opts not to ship it and the buyer has no option even to give a negative feedback to the seller (no cancelled orders are eligible for feedback even if the cancellation happened from seller/amazon). Really a pathetic customer experience. Even amazon has no control or power to ban such non-shipping sellers it seems. All a customer got to do is place an order with his money and keeps his fingers crossed. Try your best not to place orders and waste time with these sellers: 'ecomputerbazar' and 'Dolphin System technologies' .. and possibly the list goes on in amazon i guess.