Final year maintenance loan 50% of previous

Hey!, I'm a student in London living with parents, for rent. I've applied for maximum maitenance loan yearly ... First year I got 6.9k, second year 8.7k and now they approved me for 3.7k! That's quite low in comparison. I've looked around and most people say they got decreased in last year by maybe 1k or a maximum of 25%. My tuition loan was a straight 9k a year.

Something strage I've noticed, last night it said I'm waiting for myparents to provide their financial information. This morning it says my application is done and payments scheduled (3.7k as above^). I checked with my parents they haven't provided their information and both received the email.

So the email was asking for their financial infromation from 2016/17 (which was my first year of the course). They already provided this in the first and probably last year. So maybe this morning someone human reviewed my account and saw the information was already there so they finalised my application? ...

My parents income is 20-30k roughly. I can check specifics later today.

But I still think from 6.9 and 8.7 to 3.7 is a bit much. Anything I could do? - I probably will move out by the end of the school year (april 2019), a bit early, maybe I could put that in the application?