Usage to gold bar rewards should never be withheld/restricted if rightfully won by player according to the initial rules of game play, rewards, and claiming for usage. Paying to break a piggy bank which holds gold bars a player already has been rewarded is downright wrong in my opinion. Give options to break bank for free after reaching high score game totals 3xs in a row. Give option for free bank break to 1st time players reaching that full bank mark. Maybe allow for a higher gold bar total like 50 vs 30 bars..before filling a piggy bank. If King insists on purchases to 'break' the piggybank then offer it with 3xs of 'breaks' w/in purchase price. Anything would prove positive for an improved consumer relationship with King Co. respectively.