Amazon India — Wrong item delivered instead of ordered item

Address:	Panchkula, Haryana, 134102
Website:	www.amazon.in

Ordered item was maharaja white line easy lock dlx 550 watt but delivered item was maharaja white line easy lock 450 watt.
All confirmation and delivery message are
According to the ordered item.
As per reply by customer care this happened due to unavailability of item. As a customer i feel that this is not a mistake, this is a fraud case. No satisfactory response from amazon customer care.