Pls help me out in Neo bux

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Hi Guys i recently joined in neobux. I could not understand it. There were four ads.I clicked all the four ads,but value credited only 0.03 which means i have one more ad to be clicked. But i clicked all of the four ads. I tried again by clicking,but it didnt work.Yesterdays ads are still in the page today.In the screen it shows total ads 21,but why only 4 were displayed. Can anyone pls help me out.