Draws lots of money from pocket

The buying experience is good, Everything is top-notch except fuel economy, it just draws a large amount of money from the pocket. After riding 1300 km I realised that I got fooled. With a Full tank of CNG which is 8.23 Kg, it runs only 90 km. Its Petrol mileage is far better close to 13-14 kmpl. Customer service is a disaster, when I complained about CNG millage got the response that it shouldn't happen. Then they do nothing to repair it. I had the worst experience. Not for day-to-day use.