ITunes method for searching? bundleId not working for my application

I'm trying to find my app from this method: http://itunes.apple.com/US/lookup?bundleId=com.writingfuture.where2

But it always returns

{
 "resultCount":0,
 "results": []
}

      

        
        
        
      

    

The state of my app in the store is fine (ready for sale). Here's the detail:

• Bundle ID: com.writingfuture.where2

• Apple ID: 467311933

• Type: iOS App

• Version: 2.0.1

• Status: ready for sale

• Date of creation: December 4, 2012

• Release date: December 10, 2012

I have no idea why I cannot find an application for this method. Do you have any ideas?

Thanks in advance,

Chammp