I'm not going to defend Duelbits but I will just question your motive because you are not providing anything, you are asked to follow the format but you prefer to attack Duelbits if you are going to attack be sure you have the evidence to back up your attack,
Well, no one asked OP to follow the scam accusation formatyet. Now if you care to follow the format
[1] it will help people here to understand your issue regarding @duelbits. While the post above me is quite correct about the accusation without proofs will be considered nonsense and just an attack.
But by reading your post it looks like duelbits doesn't give you the deposit bonusas they promised. Now if you can post a screenshot
(upload images to talkimg or imgbb then include it here) about the deposit bonus promo ad, your deposit txs, and other images thay will back your accusation.
[1]
https://bitcointalk.org/index.php?topic=260073.0