Hi,
Thanks for your response.
Yes, I’ve followed the instructions exactly. The [manager_link} URL still produces something similar to:
There is no alert bar at the top of the page, nor does the URL include the “fvunsub,,,” as mentioned on this page https://wordpress.org/plugins/subscribe-to-comments-reloaded-better-unsubscribe/screenshots/
There is no sign that the plugin is actually working, despite following the install instructions.