Happened to me too, found out just some time ago that the amount going towards wagering the bonus amount is only 20% of the bet amount/total wager. Well can't really blame them as
1) If they actually went for 25x wager for bonus and counted 100% towards the wager, they'd be stupid and going into loss pretty quick.
2) Other sites do this as well, every casino site(with multiple games and a deposit bonus) has a different wager % for a different game going towards clearing the bonus. An example of a dice site which does this is cryptogames.io .
Although I have to say, with there being only one game , they should put an asterisk beside the "25x" and explain the exact conditions at the bottom.
Agreed there is no way they could do that with only a 1% house edge, at least not at 25x. They would lose money as people would just play max chance and clear it easy. I think 125x is too high and the admin is updating anyways and making a change in the requirement.
That why i labeled it to read fine print. You have to be careful about bonuses and do your research before you just blindly deposit. This is ment as a warning. in general not just at duckdice.io i've never seen a bonus at cryptogames.io. I agree with you having an asterisk that makes it clear so someone doesn't feel like they are getting taken advantage off. So they keep coming back.