There are few organizations in the world more feared than the Internal Revenue Service. They're like the strict parent that you don't want to tick off. That's why many in Illinois are now concerned about stern warnings being issued to residents of the state about illegitimate tax credits being claimed.
Either way, just like the IRS says, don't panic! If you try to take care of it, you won't get in trouble. Just ignoring it and not even making an attempt, that's what'll get you in hot water.