Then you're wrong about how much you're entitled to.
http://www.direct.gov.uk/en/Educati...dentFinance/Applyingforthefirsttime/DG_174046
That only works if you fit into one of their drop down boxes. Anything that doesnt they throw a massive fit. I live with my step mum, havent lived with my mum in 6 years and my dad lives abroad. I spent 4 months proving that i was entitled to just get a loan. Then they decided i wasnt a british citizen because they had put i live with my stepmum and dad so they thought i lived abroad. Funny thing was i had sent my british passport to them 3 times at this stage and had made it very clear on a number of occasion i didnt live with my dad.
In the end i got a loan but they refused to even assess household income for a grant. This year instead trying to do things properly i have just answered each question 100% truthfully so now it appears to them that i live alone.