is this a scam ?

My Momma used to say, "When a deal is too good to be true, then it is normaly not true". 

Best case scenario:
              You safe 40 bucks.
Worst case scenario:
             You lose 33 bucks
             You gave away your credit card number with your SEC number
             You gave away your real name
             You gave away your real address
             Possible 1 year membership?

I would ask friends, if they have experience with this provider before buying. And if you still want to take the risk, i suggest to use a second credit card for only these kind of things, not your real one.