Poor quality of teaching, bad admin, definitely not “Private school” worth paying for

Exceptionally high teacher turnover, lack of ownership, poor teaching results. I am moving my child out of the school due to extremely low maths and science results in grade 11 (class average 35% for maths)…Also, I paid my fees annually in advance, I am leaving the school due to their poor delivery and they refuse to refund the months that we will not be in the school. I am moving my child out of this private school and into a public school as quality of education is really poor. When I raise it with them they have a very bad attitude.