I agree with Wobble33 would seem that the Op had no idea that he had received a $150 bonus.
Don't mean to offend the OP or other players, but if you deposit 2000 and your balance becomes suddenly 2150, it's not easy to just say I didn't realize that the bonus was added. EVERY casino (BM and online) always has the current balance showing in a well readable form.
Now if it's a new casino and your first time, it's good practice (I'll even go as far as saying it's common gambling sense) to take that extra minute to ensure that your deposit is credited correctly with or without bonus before the first spin. Why be impatient to just get it in and let it roll.....it's your money after all!!!