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Audit Defense has nothing to do with the operation of the TurboTax software or the preparation of your tax return. Audit Defense is a service that assists you if you are audited or receive an IRS notice after you file your tax return.
The Audit Defense service is provided by TaxAudit in partnership with TurboTax. If you purchased Audit Defense for your 2019 tax return, you should call TaxAudit at 877-829-9695, or report your IRS notice on the TaxAudit.com web site. Do not contact the IRS until you have spoken to TaxAudit. They may contact the IRS on your behalf.
