Front Seat Recliner problems of the 1999 Ford Taurus

The drivers seat of our Ford Taurus is broken. The seat back moves forward and backward independent of the seat adjustment track. This movement requires the constant adjustment of the drivers seat belt which is very distracting to the driver which increases the chance of an accident. I am also concerned that the seat may not hold up in an accident. The dealer I took this to benna Ford in superior WI refused to replace the seat. I have also contacted Ford corporate and they have also refused to replace the seat. The seat should be covered under Fords 3 year, 36,000 mile warranty as the problem was shown to the dealer before the 36,000 mile mark.