federal aid b.s.

so i recieved a letter saying that because of grades i got in 2008, i cant get anymore financial aid. i already got a letter before saying i got money and its listed on my payment shit. i just dont understand if theyre even going to pay for it or just leave me hanging when tuition is due. it would have been nice if they were more detailed in the letter. the whole thing is bullshit tho. why does it matter what my grades are? im paying everything back plus interest! plus they let me get financial aid for the last two quarters. the whole thing is just stupid. and my tuition better get fucking paid on wednesday like it says its going to.