How do i turn off two-factor authorization?

From the article below. 

Can I turn off two-factor authentication after I’ve turned it on?

If you already use two-factor authentication, you can no longer turn it off. Certain features in the latest versions of iOS and macOS require this extra level of security, which is designed to protect your information. If you recently updated your account, however, you can unenroll for a period of two weeks. Just open your enrollment confirmation email and click the link to return to your previous security settings. Keep in mind, this makes your account less secure and means that you can't use features that require a higher level of security.

Apple ID -Two-factor authentication.   *

Here is a quote from Apple"

 "If you recently updated your account, you can

unenroll within two weeks of enrollment. Just open your enrollment

confirmation email and click the link to return to your previous

security settings. Keep in mind, this makes your account less secure and

means that you can't use features that require higher security."

I never received said enrollment confirmation email.