The same thing happened to me. I bought the large star pack on the 18th and I didn't get it, contacted support and sent them screenshot of the receipt and im still waiting for a reply. this has happened to me 2 times before. After I get the k stars(which I really hope I will!) I am for sure never buying anything on this…
It happened to me again too! Contacted them and they said they fixed it again but it's still not fixed. I regret wasting money on this game. Uninstalled.