It doesn't tell you what # afterwards.It told me in a pop-up window as soon as I added myself, but I haven't figured out if there's a way to check after. Also, just read that another pop-up will appear in the top-right corner while browsing the Amazon site to alert you when a copy is available. Guess you just gotta be vigilant. How much time do we have to claim it before we lose it?
And it's 2minutes.