so heres a trusted site that i tested and got my gift card amzon 10$
so they have a site and a app there youc an earn those points by watching videos completing surveys. There you can earn csgo, tf2, dota skins. At the site youc an even chat with others look what they ordered and they earnings, there youc an get bonus for example daily login or collect 50 points in 24h and get 5 points bonus. So i use it every day and im happy with it. I hope that this app will help you as well.
Heres a youtube video of mine that you can see how it works and look.