Yes, I think I have... But we'll never really know for sure until we hear from the City again, maybe a year from now?! 🙂
The Support person at Airbnb needs to take specific action, not sure what exactly, so I would insist to Support they get you to someone familiar with the Chicago case or get some information on what to do.
What I did...
1. Ensured both my Listing and Personal Profile address is correct and complete, street direction, apartment number, etc.
2. Explained to Airbnb Support call was related to the global Chicago issue where many hosts have to delist today unless Airbnb re-submits registration to the City of Chicago. Specifically asked the Support person if he/she was familiar with the issue and the email sent to Chicago hosts last night. In my case I have a very long and detailed history in open internal case with Airbnb. I was on-hold for about 5 minutes while Support person figured out what to do.
3. Support came back on the line and seemed to understand what was going on. From her comments she eitehr read some of the notes in my case and/or consulted with someone else. She reconfirmed address for the listing and noted in their internal case I was calling to re-submit registration information to City of Chicago.
4. Supposedly the group/organization handling the issue is going to circle back with me. But this is Airbnb, so I know I'll likely will not hear anything back. Expect I'll have to call again around the end of the month.