Amazon India — poor quality material supplied & not taking return

Address:	Thane, Maharashtra, 401208
Website:	amazon.in

Sir, i had purchased a body fit gym equipments on 20 september 2018 for a price of rs 5140 having order no.[protected] from amazon india through online. When they delivered the product to my home i found that product was having poor quality & can break easily. So i decided to return the product immediately. When i requested for returning the product they told us to return it by yourself that too with my cost which will be equal to cost of the product as told by courier agency guy which i cannot afford to return as it will be mine losss from both sides as i am paying for the product twice that too with no asssurance that i will get my money back. They had given me three days to return it in which two days were holiday of dussera as all post office & courier agencys were closed. If dont able to return they will not accept my claim.
I had contacted them several times but i am not getting any response.
Please help me in this case.
My contact no [protected]