If you purchased Audit Defense for the year in question, call TaxResources, Inc. at 877-829-9695, or report your IRS and state letters on their web site. Do not contact the IRS or the state until you have spoken to TaxResources. They may contact the IRS on your behalf.
If you did not purchase Audit Defense, you can get help with your IRS and state letters from TurboTax at the following link.
We can help you with your IRS letter