The management committee of an islamic school does not allow parents to complain directly to the Ameer or the Shura.

Answer

It is perfectly permissible for any person to have a direct communication with the Ameer or his Shura committee. Hadhrat Umar (Radhiyallahu anhu) was the ruler of the Islamic Empire which stretched from the shores of the Atlantic in the west to the boundaries of China in the east, yet, any beggar in the street could go up to him and speak directly with this great Emperor of Islam. So just who is this puny ameer of a puny organization that cannot have a direct link with any parent? They should dump their western protocol in the trash can.