Change in circumstances after receiving aid?

Can’t find anything online about this, but, does anyone know if you can submit a change incircumstance form after you’ve received your aid package? I know you can if since you Received your aid something has changed, but what if a circumstance occurred before you received your aid and just forgot to file that paperwork? Anyone ever had to do this?

If your financial situation has changed since you submitted your financial aid application materials, then you need to contact your college and ask what their procedure is for a special circumstances consideration.

Usually the types of changes considered are loss of income. Is that what happened?