No one at TurboTax knows what happened with your IL return. The state does not provide any information to TurboTax after you filed your return. Sounds like you received a letter from the state. Read it more carefully. What does it say?
You can get some help to understand it:
AUDIT SUPPORT
https://support.turbotax.intuit.com/irs-notice/audit-support/
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
