Car a mess since bought with zero help

We bought a ford st and since we got this vehicle we have had on going problems. they collected the car more than once to get it fixed. eventually shaun baker assisted. imperial advised we take the car to ford to get it fixed and they will pay. the car is now with ford and this morning when we spoke to imperial they refused to pay any money because there staff has apparently never raised it with management. we are now sitting with a car that needs fixing to almost r37,000!!! what are we now suppose to do. we bought the car feb this year and complained, made numorous phone calls and apparently now no one knows about this as per werner at imperial. shaun and Stefan is well aware of this and everybody is now denying anything!!!!!!