Adaptive Equipment problems of the 2006 Lincoln Town Car

Upon driving the vehicle the air bag light would come on. . . . And the seatbelt alarm would sound over and over again. So I took the car into allan vigil Ford to be checked. They told me my seat belt needed to be replaced, which they said they had to pull the dash out to get to the proper parts. The cost of this repair was $594. 27. . . . . . The light came on again in September 9, 2013. . . At which time I carried it back to allan vigil and was told it was then the passenger side seatbelt with the same issue. . . . . They repaired it at the cost of $630. 88. . . . . . I feel this should have been handled by Ford, at no cost to me. . . Because upon my further internet searches found this was an issue that has been going on several years with the seatbelts. . . Of the 2006 Lincoln towncars. Also I feel I should have been given more consideration due to the fact that my husband retired from Ford with 35 years service. Please respond .