Asus India — Product quality

I bought Asus zenfone selfie before six months.. Now I am unable to use the mobile. Tower problem in my mobile. I bought this through flipkart and all the customer service centers are provided in Andrea but I stayed in chennai.. I am unable to use free service so I went for payable.. They are telling like it is a board problem or network ic problem. I didn't even paid my emi but I am having this problem. I am not satisfied with this. Kindly replace the product with new one.