See this TurboTax support FAQ for the verification code - https://ttlc.intuit.com/turbotax-support/en-us/help-article/security-risk/trouble-filing-verification-code/L6X76gZlE_US_en_US?uid=m6thbr0z
Here are two FAQs to help: What if I'm having trouble with my filing verification code? and How do I get a verification code if the email address is wrong?