^ That.
The free ones are basically good. To be honest, all offers count on your information. If your information is valid and accurate then it has a better chance of awarding you. Screen shot the completion page also... And if you don't get rewarded send the people who did the offer a support ticket with proof... Then you should get rewarded...
Arcamax like said above rewards you easily... You just have to confirm your email. No big deal. It's easy.
/Closed