The best way to avoid being banned is to leave other players alone (You don't need to troll those who actually want to play by its balanced economy) and to avoid over-splashing on cash amounts that are either un-realistic amounts or simply don't need. If you want a 10$ million jet, top-up 10 million and purchase it. Don't thrown on 100 million and expect everything to be perfect. Its a side by side risk with any method. The overall way is to avoid cheating at all but I suppose I'd be flamed to the ground for suggesting such witchcraft on this topic.