Liability damage without a damage report?

Hi guys! A horticultural company dropped a big branch on my car this weekend. The consequences are dents in the roof without paint damage and a dent on the A-pillar with paint rack. The woman of the company says the insurance wants to settle this without expert report, if the damage is less than 1500-2000€. So I should have to make a workshop and a cost estimate and 2-3 pictures and get another questionnaire. So, my car is a 92er Scirocco GT2, value I would on could be a total economic damage. However, this could only be determined with expert reports, right? If this is only done with a cost estimate, can I get the coal or MUST I have it repaired? In case of total damage, I get the money paid out. Should I get involved or rather get an expert report done? Thank you for your help! I will first go to the next VW workshop and ask you about it.