Hi,
I use the Nordic Netflix. Do you know if I can redeem this to my local nordic account (or if go to Netflix.com via proxy, redeem it there, will it be applied to account at the nordic site where my account was created and is used) ?
You will have to use a proxy/VPN. It may work with your current account or you might have to make a new account under the proxy, but you will definitely be able to use it somehow. After you have the code redeemed you don't have to use the proxy/VPN.