Kanga's school wants to drop her SL minutes from 60 to 40. I refused. They said they are doing it anyway. I need to send them a certified letter stating that they cannot do this. I need to (a) make sure I am right that this would constitute a change in her services and as such need an agreement or that they -as the party wanting the change - would need to take it to due process to make the change over my objections (b) that I can invoke a stay-put to keep her minutes at 60 pending the result of the due process if they file it (c) quotes from the law or court cases supporting this.