I got my email at 7:25 pm central standard time on July 10th and I applied on the 2nd.
Granted my email was a bit long but I explained my fealings as thoroughly as possible.
Maybe the system is down or it is in your spambox/ was blocked?
As far as I go, I am VERY serious about testing games and report the smallest of issues that bother me and possibly anyone else as well.
Best of luck to those who did get in like me, and hopefully a good gaming experience for those who didn’t after we help fix any issues.