Shreenath Hyundai — defective air bags

Past one year i was in a delima to buy which vehicle, after considering all the features i selected the hyundai's i20 elite asta dual tone.
I noticed various safety features like abs, air bags, sterio etc apart from that i believe in the brand name hyundai and brought the vehicle although it was out of budget but i managed to pay extra for the safety issue only.
Now before couple of days i was travelling with my family and my vehicle got damaged severely and me and my family had a narrow escape for that i am once again very much thankful to almighty allah for saving our lives.
Vehicle get damaged severly and loss was to a great extent but i am very much disappointed that the air bags didn't emerged for the safety purpose of the passengers and driver.
I had a father with me he got a severe injury in the head if air bags would work properly he would be safe and didn't get the injury.
Know i dont believe in the air bags i dont believe on the promises that hyundai is delivering to their customers you are looting people against these rubish features like air bags that don't work when they are required or you had delivered me the vehicle with defected air bag system.
Look into the matter as soon as possible and revert me accordingly otherwise i will go to the court against hyundai and i also publish on print and social media. I had already registered a complaint via customer service exe.