TurboTax cannot intercede with CA on your behalf. But you could try contacting the state. Or you could print out your 2017 state return, sign it, and mail it again. Next time you mail a tax return use a mailing service that will track it, like UPS or certified mail so you will know it was received.
https://www.ftb.ca.gov/aboutFTB/contact.shtml
**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.**
