Amazon India — Damaged product not replaced or refunded

I ordered a foldable table from amazon on 16th june. It was delivered on 26th but was damaged. I raised a replacement request on 26th jun which hasn't been fulfilled yet. Now the customer care is saying they can neither replace the product nor schedule a return pick up. I already paid a shiipojg charge of rs.110 for rs.1048 item. If i have to ship it back i will have to spend another rs.500. Amazon had promised replacment if product is damaged and is not fulfilling it.