My experience has been that in the US, at least, most schools and teachers don't know how to spot someone who is gifted and learning disabled, and they couldn't really give a crap anyway. They prefer to blame it on the kid and say the kid has an attitude problem. A lot of gifted/LD kids fall through the cracks that way, and they end up frustrated, confused, and they have no self-esteem or self-confidence whatever. And they never learn how to compensate for their learning disability. That was why I had to pull my kid out of school and start home schooling him.

Even after my son was evaluated and found to be gifted/LD, and a plan was drawn up to help him, some of the teachers even refused to implement the plan. They said they were going to do it their way, and their way was to treat it as an attitude and behavior problem.

A lot of teachers (in the US, at least), care more about protecting their turf than they do about helping kids. I see some evidence of that here in this thread from at least one UK teacher, so I suspect this is a problem in the UK, also.