It wasn’t right then. This line was near the statement about the old release being deter so I thought it was referring to the old release.
Do you set version in build.settings or just in the corona build window?
You set it only in the build window.
I hadn’t published to Google Play in a while, so I just tested with one of my apps using build 2013.1202, and there’s no problem with the APK spit out from Corona.
Make sure that you’re uploading the correct APK (triple check “Save To Folder” in the Corona build dialog!)
Maybe it’s saving the APK somewhere else. It’s happened to me before…
I need to test but my guess is my build.settings was overriding he version code and google wasn’t taking the uploads as they had the same version code…
Google will accept several Draft uploads with the same Version Code.
Now that you mention it, I remember that I think it’s possible to set version name and version code in build.settings.
I’ve never used that. It might lead to confusion since you can also set in the Corona Build dialog…
I’ll do some testing and report back
Worked! So I deleted the version line from my build.settings so it no longer overrides the corona build window dialog.
Now back to trying to get a license server response 
ingemar - when you mentioned you need to use test users (not your dev account) to test licensing, did you mean for Alpha/Beta upload testing? In my case I’m uploaded to the PROD area…
It should be in the Prod area, and the app should be uploaded as a Draft as I described earlier above.
You set up your test users under the “Settings” section of the dashboard (looks like a small gear).
Under “License testing” there is a text box where you enter your test accounts that you use on your devices (comma separated if you have more than one).
Update - now getting a response - however getting an error type of “network” back in the response. Have raised this as a separate question here, along with my test android code
http://forums.coronalabs.com/topic/39407-licensingverify-getting-an-error-type-network-back/