Amazon India — camera returns issue

Address:	560076
Website:	www.amazon.in

Hi team,
I bought nikon d3400 from camera. It gives poor microphone voice recording, and as an entry-level photographer, i can't say how good it will be just by seeing the numbers such as 24.2mp or focus points etc.
The issue is, i wanted to return it and buy another dslr from amazon.in. But amazon is not accepting returns, saying that cameras can only be replaced not returned. I never had hands-on experience on nikon brand camera and focus is not that good, microphone poor voice recording. So many problems this model has. (Please note the entire nikon d3400 is same) and amazon cust service saying that they can only replace even though i'm saying that i will my next dslr buy from amazon. I feel so frustrated with this # return policy of amazon. Now i have to live my entire life with this poor quality camera. Feels like cheated.

I'm just expecting return of this nikon and want to order something else.