Amazon India — Horrible Shopping Experience

I ordered for Toshiba Canvio External Hard disk vide Order #[protected] on 01st October 2014 and I received a auto confirmation mail that the order will be delivered within 08th to 11th October, 2014. Again I visited the site I found that the estimated delivery date is 15th October, 2014. But till date the order has not been delivered. Whenever I chat with the customer care executives they alway apologize for the inconvenience and say that they will escalate the matter to higher authorities. But till today the order has not been delivered. And also surprisingly whenever I try the track the order shipping status on courier website it says the details of consignment is not found. What a horrible service from Amazon India.