We're aware of an issue with Facebook purchases for all King Games and our team is on it. ๐ ๏ธ Hang tight while we fix things! You can still enjoy the game, and we'll keep you posted once it's solved.
Hi @fanta On you Android phone, launch Play Store and click on the menu button on top left (3 horizontal lines), select Payment Methods. You should be able to add PayPal to your Google account. Once PayPal has been added as a Payment option, you can use it to pay for any in game purchase. Cheers!