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