About piggy bank

Welcome @1966 to our amazing community! It’s so great to have you here! To answer your question about the piggy bank, in order to use it, you must win stars to fill the bank up with gold bars and, when you have collected enough, or it is full, you need to purchase it by paying the stated amount. The reason for this is that the purpose of the piggy bank is not to grant free gold, but instead to offer you a better offer on gold bars when compared to other offers in the in-game store. I hope this answers your question!