Budget Car Rental complaint: BOGUS CHARGE

I’ve always renting cars from Budget, since every 2 months I’m visiting the United States on business.
I’m sorry to disagree, I didn’t drop anything in the car that would stain or get dirty in such a way as is stated in the letter I received from Budget yesterday.
I’m sorry, since 2001 I’ve been renting cars from several rental companies, including where I have priority service in some of them, and I’ve never had any type of incident, either inside or outside the car, even because I take every possible care.
I ask that before anything else, you send me photos and videos proving that what Budget accuse me of really happened. I do not authorize a debit until it is proven that I actually caused this damage to the car, especially because the car was not perfectly clean when I rented it.
I’m first trying to resolve this amicably, because I don’t accept this accusation because I know it didn’t happen.
Budget charge my Credit Card USD 450,00 for something that I did not.