Got hit by a Driving Instructor

This happened at a steep incline at Alathara, as i was about to drive up the incline, i saw this driving school vehicle in front of me trying to give space for a bus and i waited at the bottom of the incline for the said vehicle to roll back and give space for the bus. The student driver tried her best to not to roll all the way back, but i guess being a student driver she might have gotten nervous (we have all been there) and she asked the instructor to take charge, the instructor took control of the vehicle and baam he rolled directly into my car. Although i was more amused than angry, i asked the guy how he became an instructor and he was spewing up excuses. He gave me his number and i got a quote from the body shop and presented the said quote to the guy and he told me the owner will be contacting me, after that the owner contacted me and was rude from the very start and was like do you have insurance and i told him that this is a 17 year old car and b to b insurance is not available and its on a 3rd party insurance, he was like we cannot give money upfront and if you want, you can move legally. Now this is frustrating, how can someone be so rude with full knowledge that the mistake happened from their part? Is this the amicable way to handle this situation?