Unable to Obtain Free Coins

I love this game, but everything is a tad bit expensive in my opinion. I wouldnt mind this if the "Free Coins" videos and stuff would actually generate me free coins! It worked a couple times, but after that, all it did was play the video and not give me the coins. Its really annoying, and I hope this gets fixed!

OMGPLEASEMAKETHISUPDATEILYTYSM about MetalStorm: Online, v5.2.1