I'm getting a "not a valid link" message when I try to verify my email address

Hi, 

Your email address is already verified, I just looked at your form and I can see that your email address is added to the list of sender email, please see:

You can start using it now. If this is not what you're referring to, apologies for misunderstanding, but please provide more details so we can better understand your issue.

Thank you.