Hello, we are currently rebalancing the game and will make some adjustments related to the gameplay. We are so sorry for any inconvenient that happened during your gameplay. We will evaluate your suggestion for a future update.
We are very sorry for the problem you encountered with the in-app purchase, please contact Shadow Survival support at facebook fanpage: https://www.facebook.com/gaming/shadowsurvival.gl or email: support@zitga.com.vn with the bill included your order ID number. We will do our best to help you.