Son locked out of account and asked for ID

In case anyone comes across this via search - the current situation some 19 days later is exactly the same, I have been around and around with Meta support via email and it has been escalated three times but each time it comes back with the same outcome - asking for ID that a 13 year old does not hold. 

I have provided, some of these more than once: 

• Account email
• Parent email
• Username
• Serial number
• Billing verification
• Screenshots of the error
• Confirmation that the built-in “Upload ID” function is non-responsive on desktop, mobile, and app

And then end result always comes back to ID. 

I am asking two questions currently that are unanswered (as apparently it's impossible to roll an account back to a child account and be under parental supervision - although that was previously fine): 

1. Without an ID the account is lost and games that have been legitimately bought will be taken away?
2. Can the games be transferred to the parental account that this locked account was linked to? 

The support team use the same script over and over again, and the names may change but there is not progress. 

I am sure the only resolution will be to create a new account and re-purchase anything, but if the ID is flagged again I will encounter the same issue. It may be that I can order replacement birth certificates, etc - but I think if it's that important to Meta, then they should request it at sign up. 

There is also the fact that I am not sure I want to be sharing ID documents with a service that is unable to provide a definite answer. If you can't help and ID is essential, then say that up front and clearly.