It may be a notification from any Apps you have on your device. On Homescreen Go to Main Message Box and search for any message related to that notification . Or on Main Message Box highlight a date say today press the menu key then " Mark Prior Read " after that do a Battery Pull Restart .See If that helps.
Does anyone already figure it out how to stop receving this offerring ad? I always get this offerring from AFBB and ajani infotech (getempower.com). I already checked through my installed application, and have none from them.