Thread: bzz agent upgrade question

I joined bzzagent back at the beginning of the year and have done 3 campaigns since then. When I looked at my homepage today they put a golden key under my upgrades. What exactly is this and how do I use it? I know that it said that it will get you into campaigns that you did not qualify for, but I'm still kinda new to all of this and can't figure out how exactly I use it. I would appreciate any kind of help. Thanks