Consumer Redressal

I\'ve placed an order for a lenovo A536 handset with online shopping site Amazon.com on 9.10.14. The consignment was supposed to be delivered to my shipping address on or before 20.10.14. toady is 27.10.14, I\'m yet to receive the product. after 20.10.14 I made 12-13 calls, emails, online chat with amazon regarding this issue, every time they said that I\'ll get it delivered in next 1-2 days. But all ended in no fruitful result. Lastly I got a mail from them that they have cancelled my order on account of \"Item arrived late\" though I did\'t give any instruction to cancel the order. I\'ve already paid Rs. 7845 for this product and waited for more than 18 days. I\'m in helpless situation and totally confused. please help to resolve the issue ASAP