yeah, it does sound like you can apply when you get your place and stuff! It all sounded so easy when they were telling everyone last year! I took a gap year so i kind of listened to what they said but was like "this doesn't matter to me!" and then this year in May, i was visiting my girlfriend and she had to do hers for her second year and i was like "...bugger! oh bugger bugger, i need to do that..." So i did it frantically and got it sent off in May.
I got a first letter that said what I'd get, which was so much less than i needed, despite having been financially assessed. Then i got sent ANOTHER one through which HAD been financially assessed, so i sent off the declaration in late July. And then i got the letter you mentioned saying i hadn't done it and IF YOU DON'T DO IT YOU'LL GET NOTHING, YOU'LL JUST GET NOTHING SO SEND IT OFF, SEND IT OFF NOW NOW NOW!!!! Which was like...huh!? so i rang them and they said it'd take a while, so i've sent another one which they said wouldn't do any damage if i wanted to be sure.
I mean it's so frustrating isn't it?! I JUST want it to make sense and be sorted out! Makes the planning for everything that bit more stressful!!!