Leasing Return of paint damage

Good day, I returned a leasing vehicle last month. Since the return date has unfortunately been postponed by 2 weeks not quite clean. Now the leasing company wants almost 3000 euros since the car has to be repainted because of the “damages” on the pictures. This was determined by a TÜV. Of course, he did his job and did not try to remove these “damages”. In my opinion, this damage is only about resin from the tree. What do you think?