Problems encountered on marketing free platinium section on android application

I am not able to receive all the time the rewards in free platinium, this happened several times and now I am a little bit fustrated. Beaside the fact that a lot of affiliate marketing websites are poping up, why dont i receive my rewards. I always meet the requiremets... for the promo. If I know I am not able to meet the conditions I dont take them. The last example is with operamini application, I did it 3 times until now, I dont receive the rewards.

IGN: SKIORAKEHAN