Are they still sending out the waves of VIP invites?
I got mine within a half hour or so of Abigale announcing on the forums that invites were going out. Did you apply your VIP key to your account on the Trion site? If you did and you still haven't received an e-mail by tomorrow morning, you could try logging in to your account information on the Trion site and see if it's updated to say you've received an invite. You don't have to go through the invite e-mail to sign off on the EULA and get the link to download the patcher.
If you applied the beta key to your Trion account and didn't receive e-mail or get your account updated to show you've been invited, you might want to follow up with Trion or at least browse the official forums to see if anyone has had similar problems. I see on the forums at the time I'm writing this that not everyone with a VIP key appears to have received their invite yet, so there's still hope.