Hi FanEagle, the whole wagering thing is something I also ran into! On the coinhulk site they have the wagerings for the deals, so check the next time 
For 88Roulette its like 40x bonus+deposit, .. let me figure this out, in your case your deposit was 16mBTC and your bonus 16mBTC (100%). That means that you have to place bets worth 1280 mBTC (40 x 32mBTC). That sounds much but I have an idea. You can place 62 times 10mBTC on red and black to meet the wagering requirements. The only issue is, that you can hit the 0 (green) 
Every time you hit the 0 you will lose 20mBTC. From a mathematical view you should lose 40mBTC and keep 60mBTC.
Tell us how it went
Good Luck!
For 88Roulette its like 40x bonus+deposit, .. let me figure this out, in your case your deposit was 16mBTC and your bonus 16mBTC (100%). That means that you have to place bets worth 1280 mBTC (40 x 32mBTC). That sounds much but I have an idea. You can place 62 times 10mBTC on red and black to meet the wagering requirements. The only issue is, that you can hit the 0 (green) Every time you hit the 0 you will lose 20mBTC. From a mathematical view you should lose 40mBTC and keep 60mBTC. Tell us how it went
Good Luck!