Redeem the bonus at the casino cashier.
Use the code 15STARGAME and get $15 free bonus.
Use the code 80NEWSTARS and get $80 free bonus.
Use the code 55YOURWIN and get $55 free bonus.
Use the code 5COMENPLAY and get $5 free bonus.
The free chip has max cash-out set at twice the bonus amount.
Best of luck!