Hyundai Motor India — The airbag did not open during accident

My car Hyundai verna ( 2016) met an accident, the front portion of car ( bonnet, bumper. Headlight, engine block assembly ) was destroyed and subsequently repaired/changed by your body shop at Safdargunj motors ( udyog Vihar, Gurgaon).
The entire accident was major, I was saved as I wear seat belt, the steering hit my chest rib bone cage and still I have pain in chest while coughing .
I am very disappointed with technical fault in your verna, as the air bags were not opened and it could have more disaster and I could have lost my life too.
I am not sure whether post accidental repair the sensors are there or not, whether that will work in future, when needed and how Hyundai company ensure my life ( a loyal customer’s life) who always believe in “Hyundai that they must have done all the checks and tests before selling this car to me and my family”.
But found that Hyundai also doing same commercial business in the name of quality .