Flipkart — I m complaint regarding Wrong Product delivered by seller

Website:

www.flipkart.com

Hi, i placed order on Flipkart Whirlpool 215L Refrigerator for my home. But after delivered product when i checked that's same model or same product but the issue is they are giving me 200L refrigerator. I have Compain More then time for Flipkart Mobile app and Customer care services but the seller IWQNBecommerce always Rejected the replacement product order.
Now anybuddie tell me what i can take action against Flipkart And Seller IWQNBecommerce.

I m totally Frustrating every time i share details on email and Provide documents for verification but they are not accepting the replacement product issue.