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I just check it and got the same as you, and @TopTort777 if you did not get that, maybe you have to check it on spam folder, because that promo not landing on my main inbox also.
I've always been unlucky in this kind of bonus; it always runs out quickly when I hope that the bonus can multiply the amount.
I decided to take the bonus, played the 50 dice bets and it gave me $50+. Need to deposit $30 in order to make the winning from the 50 dice bets to be available in my bonus balance. Will deposit later as there is 7 days limit in order to activate the bonus. Last night I also took the 75 FS on Sweet Bonanza 1000 bonus, but unlucky because I won $12 only from the 75FS and lose my deposit + winning from the FS before completing the wager requirement.