How to Get a Silver Button for a YouTube Channel

When you get a silver button, some kind of alert comes up at some point after you pass the 100,000 subscriber mark in your YouTube channel. So I sort of contacted someone at YouTube and said, Hey, I think I'm entitled to six silver buttons. And I got them all in one fell swoop. But I've since discovered when you get aSilver Button, like the civilian way, there's an alert about it.