Prepare your documents. Check the ratings, bonuses, betting margins and all other important facts about WinPrincess. Prepare to wait. /[HOST] is organising gambling games in a casino, on gaming tables and with slot machines. Chile, Clipperton. WinPrincess is a recognized sportsbook operating under the licensing authority of the Gambling Board of Tanzania. This licensing ensures. · 3. Review of WinPrincess. . Once you win big, you need to stop gambling right away! · 2. There are literally thousands of online slot machines to choose from, so you can be sure to find a game that suits your needs and interests. Princess Leisure (Tanzania) Ltd. 5 THINGS TO DO WHEN YOU WIN A BIG AMOUNT OF MONEY · 1.