Well, I hope I'm in for the Challenge, despite not getting the confirmation email (still). I
did get a "thank you, you're in!" confirmation screen, a confirmation number on-screen, a charge on my credit card, an email confirming my waiver signature,
and my registration
is showing up in my runDisney dashboard ... so hopefully I'm in.
But I would like them to send me that official email! I contacted them, so we'll see what happens.
They sent me an email every time I signed in to my Disney account today, but no confirmation email.