Best calligraphy class teacher , tried a lot of teachers but this one is best n most creative

Completely Unprofessional!We paid the entire course fee for 15 sessions with fixed timing, through out the duration she either changed the timing or cancelled due to lunch or events at home, festivals etc. It appears that she conducts these classes as a time pass between her other chores. On discussing this with her she started blaming our child for not doing homework.Extremely disappointing!