Did you purchase the optional Audit Defense product? If so, we can tell you how to contact the company that handles that service.
If you did not purchase Audit Defense, you can still use the TurboTax free Audit Support Center for help with an IRS letter. To get the phone number, go to the link below, click the blue "Get Help" button, and follow the prompts.
https://support.turbotax.intuit.com/irs-notice/audit-support/
If you explain more about what the IRS is alleging, you may also get some suggestions in this user community forum. But this is a public Internet forum, so don't post any personal info.
