Since you didn't receive the 6 digit code by email, please try the fix below. Also, make sure you check your spam or junk email folder. Sometimes email providers hold emails they think are spam, only to release them as long as 48 hours later.
If you didn’t get a code, check that you have the correct email listed in your account:
- Select Intuit Account in the left-hand menu.
- Under Account Settings in the PROFILE tab, enter or edit your email address.
https://ttlc.intuit.com/replies/4576376