pactbonus

The fair wagering part is most of the story. A reload with 40x wagering on the bonus, played on a 4% edge slot, has an expected cost of 40 x 4% = 160% of the bonus, so you're expected to lose more than the bonus is worth before you can withdraw. On a 1% edge game the same reload costs about 40% of the bonus. So a small no-wager rebate often beats a bigger reload with heavy wagering. The reloads worth planning around are the ones with low wagering, or ones that let you play low-edge games.