Acer India — car service

Address:

Hyderabad

Dear sir/madam,
I have given my car to acer motor services hyderabad. They have removed the screws but did not fix them back due to which my car door is broken. On asking them, they are behaving rude and not taking any serious responsibility to fix the issue. The mananger himself is saying to send pics of the identified areas where all screws need to be fixed but how could a common man understand where are they missing actually. Don't they have responsibility to check the car before delivery?
Please take necessary actions