WordPress itself does not have a form to verify the email as you describe. I suspect this is due to a plugin you are using for which you have installed an update. I can’t even guess which one it is without a link to the page or seeing it myself.
You would have to find the plugin responsible and deactivate it via FTP. To do this, log in via FTP and remove the relevant plugin directory from /wp-content/plugins/. You should then be able to log in again without the email verification.
If you want to continue using the plugin in question, please contact its support team to clarify why the link is not working.
Brilliant – Have done as you suggested and deleted Wordfence from the directory and all works now when I login. Indeed, wordfence was one of the plugins I updated so will contact then for support or try something else.
Thanks again for your kind help.
Nice if I could help. You are welcome to set the topic to solved.