Exposing the child in front of other learners

Good day

I would like to raise a concern as a parent of a child who is attending at Charlestown High School, the child was beaten up by one of the teacher on top of the table several times and he also use a stick beating the child umzimba wonke in front of other learners.... Just because the child was absent last week Thursday without notifying them at school. Oku worse the child is been repeating same class for 3 years now Grade 8 angazi noma ukumshaya uzokwenza the child to be promoted or what angazi... which is not funny at all we never receive any phone call from school basibiza as parents..... So I just need help please.

Yours faithfully Busisiwe