None of your business. Stay out of it.
If you’re that concerned, then offer to pay more for college.
Maybe she spent it. Maybe she moved it into retirement accts.
If her EFC is less than $2000 then maybe she qualified for simplified needs testing and assets didn’t get counted?
Does your daughter qualify for free/reduced lunch?
You sound bitter from the divorce. Find other things to worry about. Maybe get a girlfriend.
And stop using your daughter as a way to pry into your exWife’s doings. Bad form.