A quick google search says that is correct...

So, who is eligible for the CARES Act payment?

The Internal Revenue Service (“IRS”) states that qualified individuals must meet the following requirements:

1. Be a U.S. citizen or U.S. resident alien;*
2. Cannot be claimed as a dependent on someone else’s tax return;
3. Have a Social Security number (SSN) that is “valid for employment;” and
4. Have an adjusted gross income below a required amount based on your tax filing status and number of qualified children.

No idea why it was written that way, but it doesnt appear that you can do much about it. 

This stimulus payment is an advance on a 2020 credit, so people that dont get it now would still be able to get it on their 2020 tax return, but if theyve flagged your SSN as ineligible, that probably wont happen either