There is only one way to avoid that - you need to keep gambling. If a casino notices you no longer play much or for higher stakes, it might no longer consider you as a high roller. However, if that is the case, your VIP host will probably contact you to clarify the situation. Keep in mind that every casino wants to keep their high-roll players, no matter the price. In other words, you would have to try incredibly hard to lose your VIP status.