I don't know if Glu offers randomly work or not. But I do know they do occassionally. I do also know that impatience sometimes causes us to think we aren't getting credits. I've downloaded and app, and 20 minutes later I'll receive the credit.
But what I want to do is start a thread to list apps/surveys/etc you did that ended up in receiving the gold. Here are mine (from what i can recall):
Link
Chili's
Buffalo Wild Wild wings $1500
Orbitz
Castle Clash
0
Comments
For me, only these worked:
Enfamil
Ebay
Bing Rewards
Despite showing up as Completed, all game downloads have failed.
Nearly all "just watch a video" offers for about 10 gold have worked for me though (besides the ones about depression or mens/womens health that say the video can't be found)