Why was my Electronic filed Fed Tax return $511. Short!!!

[Volvo]

How can I contact  a person at Turbotax  about my $511. Fed tax refund shortage?

[DoninGA]

Once a tax return has been Accepted by the IRS or a State, TurboTax receives no further information concerning the tax return or the status of any tax refund

What does the IRS website for the status of the federal tax refund indicate - https://www.irs.gov/refunds