How to complain if the property is not allowed to expand the bathroom?

Go to China Property Management Institute or public service platform to complain. The property is not allowed to expand the bathroom. When making a complaint, you can go to China Property Management Institute or public service platform to make a complaint, explain the specific reasons of the incident, submit relevant evidence, and the official will handle it. Matters needing attention in complaints should be raised to the local authorities in a timely manner, requiring seeking truth from facts, reasonable requirements and opinions, complete materials and conclusive evidence.