@britechguy this... and in the age of automatic MFA, which Apple has joined entirely it's made even worse. Account recovery requires the use of the MFA token, or answers to the security questions ALONG WITH something else.
So if the user didn't put their own data in, the account isn't theirs. It isn't about Apple knowing, it's about the user being able to complete the procedure. And if the user didn't complete it themselves, they have no knowledge of it, they have no ability to handle it, they then have no means or right to access the data they ignorantly shoved into it.
This is a huge mess, one that cannot reasonably be unraveled. All I can do in these cases is explain the reality, setup things new, and point them at what to document so it doesn't happen again. They aren't going to pay me enough for the time it takes to unravel the years worth of stupid they hand me in such circumstances. Most of them in my area won't even pay for the time it takes to properly configure an account.