Conquer Club

I just bought someone Premium but do not know how to get the bonus or whatever its called

I believe to get this bonus, they must be someone you recruited. They need to have joined from your Referral URL...
If they get premium after both conditions .. you get a months premium ..
If you already have premium I think that it will extend your premium membership another month...

well i did but it was before i knew about this , so thanks anyway .

i have no idea