Zivame — Denying to return the product

Website: Zivame.in

I have shopped a product from zivame. While placing order it was clearly mentioned that the product is returnable and exchangeable within 15 days but now they deny to return the product by giving silly reasons that you have purchased it on discount. Although i sent them the email which the screenshots attached to it that in their website it is clearly mentioned that during this grand sale, easy returns and exchange available. They dont even bother to reply to my emails.