Do u choose those cost-free sign-ups?
I find it either US ONLY or unavailable for the moment...
You choose offers you are legitimately interested in trying out, regardless of cost.
at the moment I don't have any $ in my account.
and the cost-free sign-ups seem to be all dead...
I can only try out the cost-free ones...
If you have no money in your account then you can't do offers. Case closed.
The cost free ones will at least try to charge $1.00 to make sure the card is valid and if that declines, you're out of luck.
Please go get some money then come back when you can do it right.
You can do no-CC required sites.