Why didn't I receive my RSVP confirmation?
Have you checked your spam folder? How about Gmail's Promotions tab?
If you have a corporate email address, it's possible that a sensitive firewall or spam filter blocked the message.
If this is the case, you may want to try resubmitting your RSVP with a personal email address. Don't forget you can always return to the event website to nail down specific details - such as the date, time, location, and agenda.