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.
There's a roadblock at that stage, you should be able to request tickets from friends since you're using Facebook, either that or spend 9 gold bars to get past or wait for the timer to go to zero to unlock automatically.