ADVICE REGARDING CPI

My 7 year old daughter has some adhd, Add and behavioral disorder aswell as comprehension, she often lashes out at school and I’ve spoke.m to the school multiple times in trying to help her cope, she gets over stimulated and doesn’t do good around a bunch of people the school denied getting on a IEP or 504 and instead they called my daughter to the office asking if we are abusing her and called DCF on me to have me questioned about the well being of my child! I was so annoyed my question is, should I send her to school tomorrow knowing that instead of them working with me with my child with sensory and out lashes that they would endanger her by calling child protective services, or should I just change her to a differant school and see if they could accommodate her in a smaller class setting because this school refuses ?