School were found to have committed several acts of discrimination against a disabled child (the child is no longer there obviously). They have been ordered to apologise to the child for the distress caused by their actions but have not done so. Would you bother to contact the school giving them a few days to apologise before taking further action or not?
So as not to drip feed the Governing Body have already behaved quite badly including making threats following the original complaint and blaming the child for certain events. They have never apologised for any wrongdoing previously.