My student loan has been defaulted for a year now, which i find hard to believe, since i just graduated at the end of April. They said they didn't recieve my confirmation of enrolment for my one semester, but by the time i found out that it hadn't been recieved my semester was over, so i had to wait till the next one started, which was four months, before i could get another one made up, then when i sent it in they said it wasn't any good. so is there anything I can do to get this mess cleared up without paying them money i don't owe?