i can't reset two-factor authentication
it warning we haven't enought information, i attemp many time but it show as same
could i contact who for help?
iPhone 12 Pro, iOS 14
I think you mean you cannot reset security questions. "Not enough information" is a common warning message when you have forgotten those.
"If you forgot the answers to your Apple ID security questions" click here --> https://support.apple.com/HT201485
If you see the message "not sufficient information" here are two methods that are relatively similar for possibly recovering from "not sufficient information" by signing up for Two Factor Authentication at this stage. See these posts by Community Specialists:
click here --> https://discussions.apple.com/thread/252885215?answerId=255425124022#255425124022
and here --> https://discussions.apple.com/thread/253011979?answerId=255657543022#255657543022
Alternatively "Contact Apple for help with Apple ID account security", click here --> https://support.apple.com/HT204169
For other support options, including those if your country does not have telephone support, click here -->: https://support.apple.com/choose-country-region To chat, choose any topic, (not Apple ID) continue working your way down options until you find one with chat support, then ask to be redirected.
(Note: If your country is not listed, there may be a support option at the end of each region section for "other".)