Amazon India — Order cancelled after payment deducted

Address:	Ernakulam, Kerala, 682030
Website:	www.amazon.in

I ordered a "Moto G Turbo" phone on 27/03/2016. I received a code after searching in Internet. After applying the code I got 7500 promotional discount.

The product orginally priced at 12, 999. I booked at 4, 999 INR. The money was deducted from the account.

After 6 hour, they cancelled my order stating that the promotional discount. It was processed at a discounted price due to a technical issue. As a result, the order will be automatically cancelled.

I didn't even recieve my money till now, it's almost 28 hour. I beleive this is unethical after taking order, deducting money and then cancelling the order at last moment saying it was a mistake.