Yes , You are right!!!! I joined Miami Club yesterday - deposited $300,- and They give me $100,- welcome bonus (i call it bull ***** bonus).
After playing European Roulette for hours and winning $205,- I tried to withdraw - THEY REFUSE IT!!!!!
They told me to play slots 40 TIMES x WAGER =$4000,-!!!!!
What a BS!
Be aware , Do not play Miami Club casino , NEVER ,Ever