Sportsbooks will offer a set amount of free money once bettors make a deposit that they can use to wager on whatever they wish. However, that money cannot be simply withdrawn as cash. As an example, if a bettor wagersR$10 of free money and profitsR$10, they will have gainedR$10 that they can later cash out.
This means you must wager 1x your bonus (e.g. if your bonus isR$250, you must wagerR$250) before you can withdraw. Some sportsbooks have insanely high rollover requirements, so be sure to check those before you receive a bonus.