Haven't used freebitcoins.betcoin.co, but I had really bad experiences with Super Rewards too. They are used by SwagBucks, www.fishdawg.com/FreeBitcoin
Every single time, I had problems with them. None of the tasks was awarded automatically; I had to contact them and proof I did them by sending headers of the confirmation mails. They also asked repeatedly for mail headers when no mail address was required. To top this, they then wanted screenshots of tasks done days ago. Of course I could not provide those anymore, which effectively meant for them that I never did the tasks.
I assume that's their default business practice. They'll charge whoever they do the tasks for while holding back the money.
If you see Super Rewards, stay away. It's not worth your time.