The first thing you have to do is to raise your concerns with the head teacher of the school concerned who will investigate your complaint.
If you are dissatisfied with the outcome of the headteacher's investigation, you should complain to the chair of governors or academy trustees. The school will tell you how to do this.
If the governors or trustees have dealt with your complaint and you are still unhappy, you can complain to the Department for Education.
Complain about how a whole school is run
You can complain to Ofsted if you think a school is not run properly. You must have already followed the school’s complaints procedure.
You should get a response within 30 working days. It will tell you if Ofsted will investigate or not, and why.