Delle through ball in a game street

The children in the Spielstraße from my front door used the private parking directly in front of our house as a football pitch, but unfortunately my car was still standing on one of the places. Now it has a dent. But the children knew fortunately exactly who exactly this hit landed. Parents are informed, get the damage form from the insurance today. My workshop says, bulging is not, because the bump is exactly in the edge. So must be spatted and painted, thus ca. . 700€. I have a claim to an expert at the amount of the damage, because I also fear a reduction in value due to the spatling and yet large-scale repainting. The insurance man told me that the verse. the expert will not pay the less than 1000€. Can the impairment be determined in any other way, e.g. at the amount of damage?