Board Thread:Game Discussion/@comment-202.36.163.2-20161215004331/@comment-210.187.46.158-20161215005831

This can happen if you click the next R$ ads before the 'Reward received' screen show up. Then you get a 'Reward received' screen for both ads.

It is still possible some ads do gives 4k R$, not tracking how many ads clicked. But my tally is always R$ 40k, so either they make sure you get 40k worth of ads or just 2 ads counted together.