You’ll find out how long you have to use a free bonus in the offer’s terms. For example, a player may be able to claim a bonus at one casino for 30 days, while at another, the bonus may only be valid for 24 to 72 hours. The standard term is three days in most cases, but you should read the terms and conditions very carefully. A player’s winnings will be considered void and forfeited as soon as the Free Bonus expires.