so just calculated and they sent 34,500 invitations. The interesting part is that if the second digit of your confirmation number was a number you were more likely to get it. They invited 21,602 people who had a number as the second digit but only 12,898 if your second digit was a number. For every single one of the confirmation numbers the ratio was 2nd digit a letter they invite around 800 but if the second digit was a number they invited around 1300. Some how that makes it highly unlikely that it is random. It's way too structured