activated wallet on nexus 7, got $10...AGAIN.

So i already got the $10 google wallet credit when i activated wallet on my galaxy nexus, but today when i set up google wallet on my nexus 7 i got the $10 wallet credit again!

Now this is what steps i did, not sure if they are important but they may be. I activated wallet on my nexus 7...prior to updating it to today's newest version, and got the $10 credit, then when i updated the wallet app to the newest cloud-connected wallet app from the play store, the $10 credit got transferred over.

only thing is, it doesn't show up on my galaxy nexus, only the nexus 7.

so is this credit applied per device activated? even if you use the same account? thats what it seems to me.