iTunes store operation failed: You are not authoried to use this service

Some days ago I also meet this same problem, I tried many thing but no result.

After that I tried this,

• First archive the app with xcode 6.
• Export that build from xcode 5 organizer.
• Upload the build from xcode 6 application loader i.e. 3.0 version of application loader.

Try this steps, it may help you

I had this issue today and I believe it is due to an iTunes Connect outage as I was also unable to log into iTC via the web.

You can check the service status of Apple's Developer Services on Apple's website.

You can also do a quick search on Twitter to discover any other users who are having login issues with iTunes Connect.

My Apple ID as a dev is different than my iTunes Connect Apple ID. I exported the archive to an iOS App and then used Application Loader to upload it using the ITC ID.