Means testing

Hi, I am a first year university student who has been studying at uni since september. When I applied for uni I only took the minimum maintenance loan and the tuition fee loan. I recently found out that to apply for university scholarships and bursaries I had to be means tested so I completed a PFF2 form and submitted this. Upon doing this I found out that this could potentially increase the amount I am entitled too for the maintenance loan based on parental income and I would also wish too know how it long it take for a PFF2 form to be processed and accepted and whether or not it could actually increase my maintenace loan allowance even after the final payment date.
Thanks, Junayd