Sallie Mae reported in error that I had a 30-day late payment in December 2006, when my student loan was actually in deferment. Because of this error, in January 2007 my Trans Union Score dropped 70 points. The same error was reported to Experian in October and my score dropped 45 points. I have finally gotten these errors corrected, however, my score did not go back up. Will my score automatically get those points back at some point, or will I have to work my way back up to those scores?