we can't see your return or notice. examine the notice to see what was changed and whether you agree with it. if you do then call the state at the number on the notice to discuss payment options. if you don't agree and have support for your position such as you weren't credited with withholding or estimated tax payments get those documents before you and call because these usually can be resolved over the phone or they may request you send in the documentation. otherwise:
I AM BEING AUDITED
If you purchased Audit Defense:
https://ttlc.intuit.com/questions/2924451-i-bought-max-or-audit-defense-and-now-i-m-being-audited
AUDIT SUPPORT
TurboTax has a special phone number for help with IRS/state tax letters, which will be easier than going through regular Customer Support. On the page below, click on the blue button that says "Get Help from TurboTax Support". Then select the tax year. Then click on the appropriate blue button. Then it will show you the phone number during posted business hours.
https://support.turbotax.intuit.com/irs-notice/audit-support/
