Amazon India — Very very disappointed with Amazon delivery service

I am really very much disappointed with Amazon delivery service. It's really really pathetic. I had order one plus mobile phone on 22 May 2015 and it shows that, you will receive product on or before 26 May. It all started from 24 May, everyday in the morning I am getting text message your package out for delivery but at the end of the day neither got my product nor any call from Amazon courier agency. Finally I chased customer service everyday to confirm the status every and every time they are keep on saying we will try to deliver it today. It has been almost a week i am waiting for my order. When i called courier guy Daven and Poojary from Kandivali agency they told me that it is not possible us to deliver the product to your area because we have to cross toll naka and we can do that if you want you have to come to till toll naka. Anyhow I arranged someone and when i called surprisingly he toll me now you have to come to Borivali to collect a package it almost 4 km away from my house. Today on 30 May again i got the same response from Santosh which is from Thane amazon courier agency. Even after chasing to amazon customer center till now i am waiting for the delivery. It is the way they are treating to customer?