[Resolved]  Ebay.in — Delivered low quality product and refusing to refund the amount

I had purchased New Wagon R VXi car Body cover online. But the product delivered to me is of old wagon R car body cover and its technical specification does not matches. There is a difference of Rs. 600/- in the same site. But when I complained, they asked me the photgraphs as an evidence. I had sent the photographs but they are delaying and through conversations, the intention seems that they will not refund. What should I do now.