I selected the 10 default topics, then added one custom topic. Without any warning that I had reached a limit (11 topics total), I was immediately redirected to the plan upgrade page. I didn't realize the custom topic would count as an 11th. Now I'm stuck and cannot go back.

Please add a clear counter or warning message (example: "You have selected 10/10 topics. Remove one before adding a custom topic") before redirecting users to the upgrade page.

Thank you.