Was having same problem. It finally worked when restarted mac, logged into app store, logged into apple dev site in safari (osx 10.10.3 ), clicked download, redeem code appeared in app store page, BUT APP STORE THEN REQUESTED AGEE TO NEW CONDITIONS (this was first time app store asked this), then redeem worked and download began. Hope this helps.BTW, I wish the 'period' worked same way in OSX as iOS, double space. Confusing for me anyway.John
                    
                  
                
              
              
                
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		App & System Services
  	
                
                
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		Core OS
		
  	
                  
                
              
              
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