Quitting college and OSAP repayments

Hi! My daughter was accepted at Durham College for the ECE program. She quit the program on December 9th or so. She is applying to another program at the same college, starting in January. What I did not know is that she applied for OSAP funding and received a grant.

How much of the grant must she pay back? And when will the repayments start? Can she keep anything left from the grant for next semester when she starts a new program?