Ask the IRS. TurboTax gets no information from the IRS after you file your tax return, so no one at TT knows why the IRS sent you an unexpected refund. They should be sending you a letter soon to explain.
Call the IRS: 1-800-829-1040 hours 7 AM - 7 PM local time Monday-Friday
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**