It took me 3-4 days to hear back. Once I did, I was asked what Day and Time I wanted. It then took another day for the official “your confirmed” email.

I have hunch that they are vetting apps prior to getting back to you. It’s just a hunch, but I don’t know why they wouldn’t.

My email to them was almost like a cover letter. I didn’t just ask to get a slot etc. I gave information about myself, experience etc.

I’m not sure if that helped, but I know not everyone heard back so I’m thinking this may have helped.