Hi Lynnette
As for me, I had to add the unit number as per City regulations, and I did that by creating a new listing and eventually deleting the first one since airbnb was slow to respond when I was relying on them to add the unit number. Eventually, I was contacted by an airbnb rep as well, but it was only because I made duplicate (ish) listing in my opinion. My time to renew is almost here. I have only one listing, and therefore am not subject to the rules and regulations of people with multiple units, which there seem to be quite a lot of in Chicago.