Tell HN: Locked out of Gmail account even after right password, recovery email

My mom got locked out of her 10yr gmail account. She doesn't have access to the phone number she added for 2FA. This is after she has the right password and also has access to the recovery email.

This basically locked her out of her whole online life because for all other social accounts she uses sign in with Google.

There is no human support, and their support website says if you cannot recover the account, create a new one.