Thanks so much for reading! They will usually have early card sales a couple of hours prior to the show. Check the Hub App or the paper copy of the activities for time and place. You can also go about a half hour prior to the show and get your card(s). Cards are $25 each, or 2 for $40.
Here are what your cards look like. At the bottom of your card, hidden under the tab is your card number. It is that number which is randomly drawn to select the on-stage contestant. They will also show the name of the person who bought the card up on the screen. There are two games per session, and your card is good for both games.
Everybody else plays for the prize board. The idea is to have as many matches as you can. The more matches, the better the prize. What is a match? As the on-stage contestant selects cases, say he selects case # 5 and it has $10 in it, then you open # 5 on your card, and if it shows $10, you have a match. You don't win anything until you have two matches. After every round they will show the prize board, and you can see how many people have matches and at what level. Whatever level you're at when the game ends is what you win. They will explain how you will receive any prizes that you win. I think that covers it!