40 Free spins bonus code for Atlantis Gold Casino, Treasure Island Jackpots and Mermaids Palace Casino May 28, 2014 40 Free spins bonus Redeem code: 40ROLL526 On Roll UP Slot Expires on May 28th 2014. Valid for all players USA Ok casinoatlantisgold.com treasureislandjackpot.com mermaidspalace.com