All the offers I've tried that were survey related worked just fine, but it paid peanuts. The only big reward one I've done that consumed weeks, they did not credit me the reward. After looking for support, they said they would need to check with the game, 20 business day after the 30 business days they asked me to wait I wrote them, and on the next day they had just got response from the game (yeah right). Saying a bunch of excuses why I "might" have not received the reward. I've have sent them a bunch of proofs that I did it correctly, and they just said that there was nothing to be done, calling me a not "new player" of the game, since the offer was only to new players. And yet. I've sent them a image from my mobile download history matching the date of the offer request. So in end it totally seems that they are Scammers. Might pay on small offers, but they still you big offers.