Lenovo — No Response from customer care after addressing the issue

The company is taking my grievances for granted, no resolving of issue and no further assistance is being provided after i addressed by software update issue for their product i.e. LENOVO Vibe X2. The product has stop responding and is certainly not useful for my day to day activities. Since I have paid full amount for the product, atleast I can expect a basic functioning of the product. No reply, no responses, and no solution.