This is Weird (Updated)

I checked to see what my student balance was and it said $105 when I had $880 left so $775 is missing and I don’t see any charges I made accept for a textbook I ordered online but I had that canceled and that was only $86 I’m a part time student taking 10 credit hours so maybe they cut me?? I’m so confused . And also my pell grant is showing $2,323 when it was $3,098 at first plus $1,732 for a loan which totaled to be $4,830 and now my total is $4,055. Any thoughts or advice is much appreciated.

I found out why the $775 was missing they cut my pell because I’m a part time student but I plan on taking 4 classes the Spring Semester