When you say all registered users received a bonus, do you mean the entire registered users or those that have had some kind of wager on your casino, I am asking for myself and maybe other potential users who had in the past signed up on this casino, but have not wagered a dime since then, are such users also eligible for this bonus?
If no, (which I am personally supposing to be the right answer to my question above), then I think using the phrase "all registered users" is deceptive, saying this cus I've checked my email and have received no such email as you shared above..
Anyways, you have a good platform, I hope to try out the casino one of this days if I remember
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e-mail bonuses are given to everyone