Duelbits 20k blackjack promotion is bullshit. The promo only runs on the duelbits branded Evolution blackjack table for 5 hours a day. The promo runs 16 days. That's 80 hours total promotion time to give out 20k. This table is dealer shuffled which takes 5+ minutes depending on speed. At best you can get 2-3 shoes a hour. Lets just assume the high end 3 shoes a hour which imo seems unlikely given full tables and some time each hand to deal and players make decisions. Most of the people will be betting under $25 which gives a prize of $25 and some will get $50 for bets over $25 if they get the special card in their hand.
Even if all the players won $50 thats $12,500 maximum payout at 3 shoe a hour.
They are liars it is not even close to a $20,000 promotion. More like 5k.
Did you participate in it? Or just assuming and not interested? if you are not interested why not go to another casino?
Each promotion depends on the number of participating users divided by the number of available promotions.
But I don't feel bad about losing a skeptic like you. There are still many promotions out there that might make you not talk too much and don't understand the concept of casino promotions.