2FA reset

Hi, so i'm trying to sign in to my oracle cloud account but it ask me for 2FA code of the authenticator app and when i put it it says invalid i went to support chat to reset the 2FA i gave all the answers correct except for phone number i made my account 3 years ago so i don't even remember the phone number and i gave all the phone number that i use and he said all of them are incorrect and he told me to come here.