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.
Hello @rababhassan and welcome to out wonderful King Community. The studio is gradually allowing more and more people to create their own Fantastic Five groups so you can play with people that you choose.
You can find out more information about it here and here.