So you bought the component and you are testing this somewhere???
If it is not working as described, then this is a bug.
Submit a private support ticket and please indicate your ftp details + super admin details and I'll have a look at it.
To be honest - the whole way people should unsubscribe is really lame... It is working that way, because it was coded that way like 7 years ago...
In the next version I plan to have a small email box - the user can submit his email and click unsubscribe, or he will just click a link in his mail...
ahhh, the next version. I can't wait to write it and release it
Cheers,
Daniel