Unfair treatment from suzuki

PLEASE DO NOT BUY A CAR WITH SUZUKI CLEARWATER. I took my car to them as I was having some error message on the car, ABS , EPS faults .they are now telling me that the car was involved in a car accident which it has never happened. They say I must pay as warranty won’t pay. This car was never in an accident, now they are hiding behind the dents on the car. The dents happened in February and the error only showed now in November, the dents were caused by scratching of a wall. I will not pay that kind of money for something that I didn’t create