If your state reduced your refund, they will send you a letter in the next several weeks to explain why. TurboTax does not receive any feedback from the IRS or your state when they change a refund. It maybe that you owed a debt in your state for back taxes, traffic fines, child support, etc. or that the state disallowed something on your return.
Or you can contact the state to ask:
https://ttlc.intuit.com/questions/1901670-how-do-i-contact-my-state-department-of-revenue
**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.**