My kid is in the childcare center above the town council near Yishun East Square. Recently( for the second time) he told me that one of the teachers pinched his hair and skin and it hurts... Should I file a complain to school? We have talked to school last time but it seems nothing has changed? Any parent in the same childcare center and heard the same thing? Should I just change to another one, any recommendation in the area for the same price range? Thanks.