If you registered and haven't received your email, you should check your spam folder, etc. If you don't state a preference for any particular timeslot, one will be chosen for you.
It's anticipated that a further email with a download link and login details for the character allocated to each participant will be sent out later this week.
See you there... And remember the discord link - https://discord.gg/Jkj6464
And here's a quote from Consultant on the official forum...
OK, we're closing registration now. We left it open for a bit of extra time, in case there were some who were last minute registrants.
We're also sending out an email to everyone who registered, this afternoon. In it we are asking you to select from a list of three times (all in eastern US time zone):
10 in the morning
1 in the afternoon
4 in the afternoon
In the ideal case you will choose more than one of these and we will then put you into one that allows us to allocate 300 people into three roughly even groups.