We're aware of an issue with Facebook purchases for all King Games and our team is on it. 🛠️ Hang tight while we fix things! You can still enjoy the game, and we'll keep you posted once it's solved.
I have seen a few promos where you get gold bars if you connect the game on your mobile to Facebook. Please check the banners underneath the game when you play on Facebook.
Other from that I believe that gold bars can only be bought.
