Air Bag Not Deploy problems of the 2004 Dodge Ram 2500

Both driver and passenger airbags did not deploy at impact! vehicle is a total loss due to the outcome of the collision. Vehicle struck a barn and exited out of it until struck a massive tree which finally stopped the truck. The vehicle was in the taylor Jeep dealership for air bag recall and was told they checked it out and found that I needed a special sensor for the recall repair and I will be contacted. I'm assuming what ever the technicians did might not have connected the airbags correctly resulting in them not deploying.