Quantico Global Pvt Ltd - Return of defective product

I had purchased a Sketra projector GB ** vide invoice no **** dt **/**/** and was delivered to me on **/**/**. It is a defective piece and the performance was very poor and image hazy. As per company terms SKETRA provides a straightforward warranty that is processed in the most hassle-free way possible. **-Day Money-Back Guarantee for Any Reason. The company not picking up phone neither replying to my request for return of product and refund.