It costs 10 credits + 1 play to play for a prize. When you run out of plays, you can buy more with your credits (100 credits = 1 play, and you can exchange up to 5 times each day)! Please note that exchanged plays expire within the same day if they're not used.
To exchange credits for plays on the website, please click on the yellow exchange button with the crossing arrows (located between the number of credits and plays you have).
To exchange credits for plays on the mobile app, please click "Exchange Credits for Plays" (located in the Player Snapshot section of your Dashboard).