Australia refused to apply for an appeal.

According to Australian law, you have no right to appeal.

But according to the immigration policy, you can reapply for a visa. If your environment hasn't changed when you first apply, and you don't refute the reasons for refusing the visa, you will still be refused.

According to Australian law, 570 visa applicants must make it clear that learning English is good for your current job. After learning English, you should go back to work. Besides, you should know more about your school and your courses.

Your answer is that it does not meet the visa requirements. It is best to find an experienced agent who understands Australian law to apply for you in the future.