Amazon India — item damaged/leaked, but amazon or seller are not responding

Address:	Guntur, Andhra Pradesh, 522616
Website:	www.amazon.in/gp/product/B01FZ3E8A4/ref=oh_aui_detailpage_o09_s00?ie=UTF8&psc=1

I bought a decorative item from amazon[protected]) costing around 7000/- back in june and product delivered in august, after that we send that item usa with out open the pack as item is heavy. As soon as they received the product it's starts leaking, so i contacted amazon and they asked me to contact seller, so i did that. They took some time and denied my claim without reason. So i contacted customer service, they are talking very rude and then i wrote a review on that product, amazon reject my review as well. Not sure what to do.