not enough information to reset security questions

Read these links please:

"Learn about Apple ID security questions, including how to set up or change your questions." - About Apple ID security questions - Apple Support

"If you forgot the answers to your Apple ID security questions" click here --> If you forgot the answers to your Apple ID security questions - Apple Support

If you see the message "not sufficient information" read this link:

Security and your Apple ID - Apple Support

"Without proof of your identity via a temporary Support PIN and other carefully selected criteria, Apple Support can't help you perform any actions on your account." Unfortunately the solution they offer using a temporary PIN also requires knowing your security questions answers... Catch-22.

With that in consideration, Contact Apple for help with Apple ID account security - Apple Support If the online option does not resolve the problem I suggest trying to get a personalized response with a chat or telephone call. To talk by telephone: Contact Apple for support and service - Apple Support

For other support options including those if your country does not have telephone support: Choose your country or region - Official Apple Support 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".)

It may ultimately prove very difficult to find satisfactory resolution to forgotten security questions (e.g., https://discussions.apple.com/thread/252410816 ). Apple is very strongly urging users to use Two Factor Authentication instead of security questions. --> Two-factor authentication for Apple ID - Apple Support