Air Bag On-off Switch problems of the 2009 Hyundai Santa Fe

I was coming from food shopping, on August, 26, 2019 and was trying to leave out my parking spot. While me backing out, my vehicle accelerated backward and while I tried to stop my vehicle it tapped into a light pole. I was trying to get my self out of this weird situation. I switched gears to park my car, and my car accelerated forward slamming into a brick wall and also rubbing against it. My car then slowly started to back up not even letting me be able to break or switch gears. For the last time it accelerated forward side swiping a lady car and hitting the brick wall again. My air bags did not go off, leaving me with an concussion and also sever neck and head pain. This all happen so suddenly and randomly. I barely remembered what happened until seeing a video off of the camera at a near by gas station. This situation went from something weird happening into a very dangerous and scary situation. I contacted national consumers affairs Hyundai motor vehicle, because my car had been totaled, I was left with hospital bills and also my insurance may go up, because of the whole situations. I thought I would have came to some closure when it came to them helping me out with my situation, but they told me they can't find nothing wrong with my car and there was no defect or anything. After sending these people pictures, the video, and even proof of me going to the hospital more than once,they made me feel like this was all my fault. I spoke to a "private" contractor from Hyundai that was supposed to look into my car and also a specialist that didn't want to give me his last name while looking into my case. Also a lady from Hyundai called me from a private number from the company. This all seem so weird to me as if they were scamming me when it came to a serious situation like this. I feel like Hyundai is running fake investigations. I'm hoping NHTSA do something ASAP.