1998 Ford Contour seat belts problems

Car turned over upside down in small creek. Safety belt of driver and rear passenger failed to release after multiple attempts by driver. The rear passenger was my two year old daughter and she died, because the safety belts failed to release and jammed. She drowned and my sister in law was the driver and almost died due to the safety belts jamming and not releasing, so she was unable to get to my daughter.

I was rear ended into another car on oct.29 2002 and niether the air bag worked as well as the seatbelt did not lock. I had head, neck, and back injuries at that time. I did't question these things not working because I was not hit hard. Oct. 27,2003 I was involved in the exact same type of accident only this time I was hit hard from behind and hit the car infront of me hard. Again nothing worked and this time the police even questioned the air bag.