Oh, I'm terribly sorry, I didn't get a notice when you sent me this message. I've never administrated a group before so I had no idea on the settings. It seemed join requests are automatically closed, but I changed that now soo...if you still want to join, you're free to do so (but it's not automatically approved, I'll have to approve it).
Thanks for your interest and sorry for the long delay!
P.S. Never gonna give you up!