National Merit Supplemental Scholarship???

<p>I got the National Merit Scholarship last year and received the $2500 as a Freshman in college, but I just got a letter from my college telling me that I received money for the National Merit Supplemental Scholarship this semester for $500. I'm happy about getting the money of course, but I'm just wondering what is this supplemental scholarship?? I checked their website, but it's not mentioned. Anyone else receive this?</p>

<p>-L.</p>