In order to maintain an even playing field, we actively check for and try to prevent behavior that negatively impacts fair game play.  

Certain Features like trading or Beach Club chat may be restricted when actions such as altering device time or manipulating player data are detected.  

This is in line with our Terms of Service (Unauthorized Use of or Connection to the Service) which can be found in this link: https://www.zynga.com/legal/community-rules .