Please consider the bingo volunteer who has completed the work during a session of bingo being able to purchase seal card tickets during the next session,where the winner must hold a winning number, symbol or letter in order to have a chance to win that game (not instant pull-tab tickets). Since winners cannot be determined on a seal card game until the box is completely sold and seal card number is revealed, there is no way of anyone knowing if all prizes have been paid out as there would be in the sale of only instant pull-tab games. There is also no way of a volunteer having the advantage over others because no one is a guaranteed winner who holds a chance at winning the game until the game is over and the winning numbers, letters, or symbols have been revealed.