Cashback Bonus
cashback bonus gives players a percentage of their net losses back as bonus money. The cashback bonus is usually calculated over a specific period of time, such as 24 hours or a week, and the percentage of the bonus can vary from casino to casino.
Suppose that an online casino offers a 100% cashback bonus on losses incurred during a 24-hour period. A player deposits $100 and plays various casino games throughout the day, but unfortunately ends up losing $90 of the $100. The casino would give you back the $90 as part of the cashback bonus.