The safest way to play and earn currency is through official platforms:

: The existence of cheats or exploits for games, including those that offer unlimited in-game currency, can have a detrimental effect on game developers. Revenue generated from in-game purchases is a critical component of the business model for many free-to-play games. When players find ways to circumvent these systems, it can undermine the financial sustainability of the game.

For those who play frequently, the official VIP options offer the most reliable way to receive keys and diamonds while ensuring the game remains updated with the latest content. Tips for Story Success