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.
You'd need to contact customer support for this. We can't help you with this here in the community. Clearly something did go wrong with your purchase. So contact them from within the app (settings then the ? icon).