I havent seen an email yet and its now been >>48 hours. But it was there as soon as I got home from the event in my tesla portal. Not sure if thats because i was already a Tesla owner or what but at least it was there.
Did you check your spam folder? You never know. Even if you didn't get the email don't worry. There's nothing on it of any value. That fact that your reservation number is in your Tesla account and you've been billed is good enough.