If you are having issues receiving your verification code, please see the below TurboTax help article for assistance. After you request your verification code, make sure to leave the TurboTax window open as closing it will invalidate the code
What if I'm having trouble with my filing verification code?
You can have the verification code texted to your mobile phone if you no longer have access to your email. Please see How do I get a verification code if the email address is wrong? for instructions.