I have a quiz game that was rejected from the Play Store on claims that it violates the Gambling policy because it currently allows users to win money for playing quizzes.

On appealing, I asked the Policy team "How is my app different from Loco or Zupee? Basically, why can I not offer cash prizes for quizzes while they are allowed to?"

Their response "Any perceived compliance or non-compliance of other developers’ apps does not have any bearing on the compliance of your own apps."

Could this mean that Google Play's policies are applied differently for different developers or apps?