Ekart Logistics — My delivery agent is not picking up the order and very irresponsible.

I had submitted a return request with Flipkart order that was deliverred by ekart.I got different product and when placing return the ekart wishmaster is not picking up the order and simply canceling the return.When I contacted flipkart, they are asking to check with ekart.I need to know whether the parcle has been stolen from ekart side and replaced with wrong item

Date:april 11
No:[protected]