Go to the education bureau in your area to complain, and it is best not to complain on the website. This will be very inefficient. It is better to call the Education Bureau directly. If the education bureau doesn't care, then you need the assistance of the local media to complete the processing. As long as the media intervene, even if there are people inside the Education Bureau in the school, the Education Bureau will bravely handle it. But I guess the landlord may not want to show his face, so if you want to report online, you can go to a public phone booth and make a big call to the Education Bureau to explain your personal views. If there is no punishment, then you will choose to involve the media, and then the Education Bureau will take corresponding measures to solve your problem.