New to MyVegas, so please bear with me! I am going to Vegas next week, and probably want to see a show (Ka or Zarkana), however, don't know whether I'll have time, or which day. Am I able to simply purchase the ticket (40 000 LP's), then call the MyVegas line the day of the show (even a few hours before show time) to see if they have any MyVegas seats available tickets? I know they fill up shows and seats quickly, however, I notice that Ka is always available. If I end up not redeeming the ticket, can I get my LP's refunded?