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 kept my progress. As long as you are synced via a King-account or Facebook. Boosters I dont remember but dont think i had any at this time. I was so enjoyed by this that I almost stopped playing. Think i followed another guide where they described the exact steps since they had to be done in order. It was a long time ago…