bought a code, works great, nice explanation in the mail too how to activate.
doesnt need to be a new account also works on an account i registered in the past on netflix.com (usa)
 

I tried to apply the code again, but now it says that it's not valid or it has been redeemed already. Yesterday it only said that it can only be redeem at the country of origin. What happened to the code? Have you given it to someone else?

You said that you don't take refunds, so I'd have to sell it. But it's hard to sell if it doesn't work.