You can claim the Royal Flush Bonus at Ignition Casino. In order to be eligible for this offer, you must have used both poker cards. The hand must be dealt to three or more players. You should win the pot but without a showdown. The bonus is available on the Texas Hold'em cash games and not the tournaments.
If you are eligible, you get a bonus of 50X the game's big blind up to $200 with no wagering requirements. You will need to write to poker@ignitioncasino.eu with your hand number and table number to get the bonus.