Free 5 mBTC? The 2 promotions AFAIK that give a 5 mBTC bonus (no deposit) require a specific wagering requirement. The 5 mBTC sports bonus needs to be wagered 4 times, while the casino one held a few weeks ago needed a larger wagering amount. It isn't a 1x rollover for sure. Check the bonus page, and it will tell you.

http://i.imgur.com/avLsPGK.png

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I think your "Turnover Required" progress bar doesn't show the proper amount wagered. Mine shows 479 mBTC (see above screenshot), yet I've wagered more than that.

http://i.imgur.com/QViOJXJ.png