Front Seat Belt Anchorage problems of the 2000 Kia Motor Sephia

I own a 3 year old kia Sephia. It was purchased as a used car from garden grove kia in CA. I bring to kia for all recommended regular maitenance. The last major checkup (30k miles) was less 6000 miles ago. Today, while fastening my seatbelt, the screw fixing the bottom part of seat belt to the car frame popped out of the frame. As only minimum force was needed for this to happen (fastening the seatbelt), this problem probably already persisted for month or even since the car was manufactured. If this would have happend in an accident situation, I would be dead now. This is a fairly new car and I take good care of it (following the manufacturer recommended maintenance schedule). Such utter failure of crucial security equipment is absolutely inacceptable. Please investigate.

This car was hit from behind by a sand and gravel one ton truck going 35 mph. It was pushed into the large SUV in front of it. The kia and SUV were both stopped for traffic when hit. The kia seats broke and reclined back and the seat belt on the driver side broke. Many injuries were incurred on both the driver and passenger.

Consumer states left front seat belt becomes unfastened, seat belt will not retract, dealer replaced seat belt.

The drivers side seat belt did not restrain the consumer while slowing to a stop, the dealer replaced the seat belt assembly. Nlm.

The driver's seatbelt is inoperative. Nlm*ea04007*.