Pepperfry — bad return policy and customer resolution tat

Address:	Mumbai City, Maharashtra, 400051
Website:	pepperfry.com

Case reference number-wr[protected].. Recieved a bunk bed from pepperfy, with bad substandard quality, also a king size bed which is not too big for room, they refuse to replace it with a smaller one, though showing in advertisement that they take back what doesn't fit, endless being put on hold with no solutions.
Need a solution for what does a customer do if the products does not fit the space, they are misleading people by showing fake ads and not delivering as per that..
Link is http://youtu.be/_GNhugDf_XQ where they say we take it back if it doesnt fit, and now they are telling me they cant take back unless its damaged...