I didn't chose any additional service, but $29.99 "California tax return"is added and I'm not able to complete my file.

[Xori · Accepted solution]

Sorry, but the cost to file state taxes with the TurboTax Free Edition is now $29.00. The promotion that allowed customers to file both Federal and State Taxes for free ended March 16th.

If you wish to remove the state return, here's how you would go about doing so: https://ttlc.intuit.com/replies/3301384

We do offer another package which allows files both the Federal and State for free, it's called Freedom Edition. See if you meet the requirements within the article below to be able to file both your Federal and State taxes for free. All the best.

https://ttlc.intuit.com/replies/3301359