System-notification-disable "Alienware Mobile Connect". You will still get notifications from other Alienware Apps but mobile connect stops annoying you. 
Everytime I sign-in or restart the Aurora R13, I get this notification asking if I would like to try AMC (Alienware Mobile Connect). I'm presented with 3 choices, Yes, Later and Never; I have now chosen Never over a dozen times which has elevated this notification from a notification to a VERY annoying notification. Before you suggest turning off notifications for Alienware, I prefer to NOT do that as I would then also miss any notices for updates and whatever else might be of interest or importance.
Aurora R13, stop ANNOYING AMC message