Ok but as I explained, I can't unsubscribe because I get into a loop of links when I try to.
On the 'Contact Customer Care' page select
1. Product or service = Creative Cloud
2. Topic = membership, signing in, and Adobe ID
Click on the blue box 'Still need help? Contact us" and you'll see the 'Chat now' option
I try too... well done for the loop, it's an old technique = Account settings > support > Account settings > support >>>>>>> but I will succeed.