Hello! I've purchased tickets through the Mirage box office for Kathy Griffin in September, and then I recently purchased tickets for Zumanity using a MyVegas reward. I can see that my tickets to Zumanity have the same confirmation number as my tickets to Kathy Griffin. Should I be worried about this or is this normal? I don't want to find out when I get there the person booking Zumanity booked over my KG tickets. Any one else experience this?