Yesterday I've got a full Piggy Bank so far, and I buy it and finally receive 30 gold bars. But then I don't see my Piggy Bank next level even I won many levels then.
@kiara_wael then advised me to update game, log out, restart device and sign in. But I already had the newest update, and I afraid when I log out and restart device I will lost all my boosters.
What should I do now???