Amazon.in — Amazon failed to provide promised offer

Address:	411057
Website:	Amazon.in

Hi, on 13th Oct 2015 I had ordered 2 products (casio watch 4045/- and Intex power bank 999/-) total 5044/- on "amazon.in" website to avail there cashback offer on using HDFC bank credit/debit card. On 16th OCT, even though I hadn't received any call from them or courier, I received a msg on mobile from amazon that "your product (intex power bank) has been returned.", after that I called up amazons help desk. As per them both product are on the way and will be delivered soon. Just to confirm again I called up again on next day then they said "product(Intex power bank) was damaged" so it has been returned to seller and please raise new product request for the same. After lot of convincing them that its not my fault . it's fault from Amazon then they agreed that they will give same product in replacement instead of refunding the money as I was supposed to avail HDFC cashback offer too on the purchase of 5000/-. Still on 17th oct I got a mail from them that your order has been returned and money will be refunded in my account(the reason given in the mail for replacement was "undeliverable to given address", which is different than they told me on call). Again after this incidence I called up amazon help desk and I said Icannot place new order now as its not my fault but they are refusing from their promise and asking me to place a new order and saying we cannot do anything now, it's against their policy. On every call I got surprises and none of their executives were in sync while speaking which is purely cheating with customer. It was a really bad experience for me. Please help