Air Bag Light On problems of the 2012 Kia Motor Sorento - part 2

I purchased a new kia Sorento on December 14, 2011. After driving it for couple days, I noticed my airbag light. It had continued to stay on so I had notified the dealer I had purchased it from. They told me that it's probably because a passenger was not sitting there and once someone sits there and buckles their seat belt, the light will go off. It was not true at all because I have had passengers sitting there and the light was still on. So after finding some time, I took my car in to a dealership near my house and found out that the airbag cushion was missing in the passenger seat. The worker was very worried and did not want me driving the car around until they had installed the airbag cushion. I also started to have some problems with my fuel system. The first time it ever happened, the tank overfilled and started leaking from the bottom of my car. I did not know that my tank was full because the gas pump never clicked off and kept on going. Then the next few times I went to put gas in, the pump kept stopping as if the tank was full. Several times I had to manually stop the pump, or hold it so the pump would keep going. After finding some time (again), I took my car in. The service did not know what was wrong with the system so I had to take them to a gas station and show them what was happening. After seeing the problem, he was able to figure out what was exactly wrong with it and was able to fix it. Unfortunately, the problem is back and I have to hold the pump when I am putting in gas. I need to take my car in for the third time; not to mention the first couple of times I took my car in, it was not fixed in one day, and I even had to rent a car. I had notified the kia customer service about my problems, but they were not informative and told me to contact the service at my dealership, and not contact them.