Amazon India — Amazon fraud

Website:

www.amazon.in

On 27th march 2016 I came to know about a deal on amazon in which a moto g turbo mobile phone was on discount for limited time and they were selling it for Rs 4999.00 and the original cost of the phone is Rs 12499.00. I have ordered it as i wanted a bigger screen phone.
I was tracking the order closely and the expected date of delivery of phone mentioned was 31st march - 1st april 2016.
I was using a 4 inch i phone 5s phone, it was a gift. After placing the order i have given my i phone 5s to the 16 year old poor kid on his birthday whom i am teahing for 2 years. He liked it very much.
Now on 30th march 2016 they have cancelled my order and didn't mailed me about why they have cancelled it.
I feel cheated and don't know what to do.

Details of my order --
Order number[protected]
Item - Moto g turbo 16gb (white)

When i have contacted amazon and told them about this they just disconnected the call and haven't resoved this issue.