Amazon India — automatically returned without my permission.

Address:	148102
Website:	Amazon.in

I am a prime member of Amazon. I have ordered three products. It was prepaid order. But when it reached my place, it was showing that it is undeliverable. When I contacted their customer representative they told me it was happened due to the mistake was done by courier partner and I'll be delivered by evening, I wait for two 2day but not deliver, now products are going to return without my permission, and customer care says, I need to order it again. The whole point is I am not getting the product at the same deal price. If I am ordering it again then I have to buy it at a higher price.
I want from Amazon to replace the same item at the same price.