Financial aids for a family with two kids in the same university

Thank you so much! I noticed the difference and have been inquiring about it. What I was told is the profile we submitted for the younger child is stronger than the older one’s submitted three years earlier. I have not noticed any error in the forms we submitted. Our home value, mortgage amount, retirement account did change some, but are not that significant to convince me that one child’s financial condition is far stronger than the other. I am so frustrated and don’t know what I can do to make them redistribute the aid between my two children. My older one does not need that much aid he has, and my younger one definitely need more help financially.