The reasons for game task rejections are usually indicated in your notifications. If you want to learn more, don't hesitate to write to Misty! You can do the following:
a)
Get already made tips by choosing "I have a problem with the platform" → "Tasks, walls of offers, minigames", and so on, moving further by the corresponding steps;
b)
Describe your problem and ask additional questions. To do this, select "I have a problem with the platform" → "Technical problem" → "Other", then write your issue in detail and wait a little bit for the answer. The Support members will help you as much as they can.
Have a nice day! Locking Thread. 
Also, please leave your suggestion/idea in English when posting on the Suggestion's forum. To do so, change your language in the settings (••• in the upper right corner) to English before posting. Thanks!
en 3 étapes
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contracts vérification is the most commun problem sometimes we finished tasks but we dont receive any rewards and there is no way to prove it like screenshots