I have a parent who refused permission constantly for their child to be referred to services, for assessment or additional support. I’ve really worked with this parent and constantly spoke to them about their child’s behaviour, what their child is like in school and highlighting the issues this will cause later in life. Mum has finally come around to the idea her child presents with typical ADHD and the barrier this is having in school. It’s taken a long time (it took me until the end of Y4 to get the parent on side) but please don’t give up. At the end of the day, you can’t request any assessment without parental consent but you can still put things in place to support the child in school. Good luck.