Buffybot74 wrote:
You can turn 2 factor authentication off in your account in www.appleid.com.
Try a reset of all devices, also.
If you have Two-Factor Authentication turned on, and it has been on for more than 2 weeks, you cannot turn it off:
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.
From this support article: Two-factor authentication for Apple ID - Apple Support
Best,
GB