Sony India — Duplicate sony headphone

Address:	Vidisha, Madhya Pradesh, 464001
Website:	WWW.FLIPKART.COM

I received a totally fake product
Order no.;- od[protected]
Sony model no. ( mdr xb450 )is not written in the headphone that shoes its fake or duplicate sony product.
.So i called the same day as i received it for refund.
Refund (Return id:[protected] any how it was cancelled .
Another day i requested the same..
Refund (Return id:[protected] and my request accepted
They dated me for 1st oct and delayed it to 3rd oct. For courier to pickup.
But i recovered no response from flipkart .I am calling daily minimum of 1 hour to flipkart costumer care but no one is giving me any useful directions about what to do .Always they say to wait for 24 hours as many times as a called .My pick up date was 3 october but until now i haven"t received any calls or messages about my pickup from the courier company... Tell me where should i go...?????
Got cheated by filpkart

"last option consumer forum."