Defamation case against amazon

What evidence that you have to prove defamation?

first I would like to Thank you for the support.

Mail from the seller quating Amazon order number. 

below is the mail content. 

Dear Talluri,

Cash on delivery is fun, isnt it???.. order when you want.. return at your choice.

It is a shame that you are placing orders and then returning them just because a free of cost service as CASH ON DELIVERY is provided to you.
note that each such order when returned cost more than Rs 200..

Next time please only order when you need it or can afford it

Regards
Naughty ninos

To my mind it does not seem to be any defamation.   Rather it is a communication between two of you.  You will only be losing your money if you pursue any defamation case.

Without proper details of purchases and what fault you find?  without those details how we give our suggestion moreover defamation not file in consumer forum. You just sent the conversation is not enough to give suggestions.

Sir , Thank you for your suggestion. understood the situation. will await reply from Amazon. 

Although it sounds like a stinker, it also unravels a tendency on your part to return all ITEMS.

If you have returned all items due to quality reasons, damaged goods, you may reply and counter.

The reply does not seem to be from M/s AMAZON.

If M/s Amazon, and said supplier are deficient, you may approach DCDRF on merits.

Without merits your complaint may not fetch you results desired by you.