Submit App to App Store REPOST

I need someone that help me submit app to app store(via Skype or TeamViewer). You should be highly skilled iOS developer. App uploading via Xcode without problems, but after uploading I've received follow message from apple: Invalid Signature - Make sure you have signed your application with a distribution certificate, not an ad hoc certificate or a development certificate. Verify that the code signing settings in Xcode are correct at the target level (which override any values at the project level). Additionally, make sure the bundle you are uploading was built using a Release target in Xcode, not a Simulator target. If you are certain your code signing settings are correct, choose "Clean All" in Xcode, delete the "build" directory in the Finder, and rebuild your release target. Once these issues have been corrected, go to the Version Details page and click "Ready to Upload Binary." Continue through the submission process until the app status is "Waiting for Upload." You can then deliver the corrected binary. I did these steps, but it doesn't help me. Thanks.