You paid for the use of the software to prepare your tax return instead of sitting down with paper forms, a calculator and 108 page IRS instruction book. TurboTax has no control over the IRS. If the IRS wanted to verify your identity that is an issue between you and the IRS. Sometimes the requests to verify identity are random and sometimes something about your return triggers the need to verify your identity to prevent fraud.
I HAVE TO VERIFY MY IDENTITY