The only requirement for participating in the St. Patrick’s Hat Challenge is to make a deposit worth $15. The single deposit gives you a single shot at the bonus.
You can utilize the promotion 3 times a day by making a deposit of $15 to lift a hat once.
The challenge is active from March 13 till March 19.
The available rewards at St. Patrick’s Hat Challenge are Gold Coins, free play money, and deposit-match bonuses. For the exact prize pool, read the info above.