I have the same problem. I was added to the Adobe Cloud Account. Because an other employee is out due to illness. But now I see we have two licences, but we only need one.
So is it possible to delete the other account? Because I am not able to.
I can see that the Illustrator subscription is already in closed status on your Adobe ID. You can log in to https://account.adobe.com/?lang=en and go to My plans and verify if you still see Illustrator subscription.