Limeroad — not refunding my amount

Address: 282010

I have ordered two coat from limeroad during sale period but seller sent cheap quality different coat so, i returned the order. After the return done, they are not initiating my refund and denying with the fact what seller has sent. Pickup of product was done already. But they are not refunding my money which is approximately 8000/- it's a fraud. It's been more than 20 days since my refund is pending please help me in getting my amount back and limeroad should bann such seller or delivery agent who are doing fraud and customer are suffering.