My daughter got following message from this teacher:
Since you don't like me as your teacher, it's best for you not to book a class with me again. Please book another teacher for your lesson. I tried my best to teach you , but please don't book in my class ever again.
It’s too sad to read such a message. My daughter (8, beginner) apparently did not understand her instructions and got bored. It’s too sad and the message is inappropriate.