Just in time for Christmas, Springbok Casino and Thunderbolt Online Casino have just launched their December Freeroll competition featuring a total prize pool of ZAR25,000 ($1,734).The sister online casinos revealed that December Freeroll will be played out on the Christmas-themed Naughty Or Nice slot from developer RealTime Gaming with competitors having until December 31 to achieve the highest score.“Tournaments are a great way to win big prize money by risking only the tournament entry fee,” read a statement from Springbok Casino.“When entry is free, as in this tournament, players have absolutely nothing to lose.”