Take a printout of the card below and bring it along with you to the venue. People without a valid delegate card will have to pay the spot the registration fee instead of the pre-registered delegate fee.
Incase the card above says "Invalid Code" instead of your actual card number please check your code and also ensure that you are typing the URL as sent to you in the mail. Some mail clients are inserting a break/special character somewhere in the middle of the 30 character security hash at the end of the URL. The hash contains only alphanumeric characters and no symbols/spaces/breaks. Please check that and try again.