Snehanjali Electronics — Lg43lh600t received display piece

Address:	Thane, Maharashtra, 401303
Website:	Shenanjali

I had purchased lcd tv of 42500 amout they promised me that they will diver u the fresh piece but when i recived the piece after opening it i saw a dent on it and cleaning marak after which i call them and told them u had send me the display piece instat of fresh piece now problem is i recieved an display piece which was hang on display for ex month which i dnt know now when i told them about this problem they started making excuse that they din deliver u the display piece but when i went to store i saw that that piece was not their and i ask them about it but they told that the piece has been sold to some one else i ask about it but they din gave me the number of that customer and told me to leave the store now i am in problem what to do?