So I bought Fire Emblem Awakening back in March and SMT4 before the pomotion announcement. Today I register both on my Club Nintendo Account, the problem is that I'm from El Salvador and I'm currently living in Brazil. Because I cannot use my credict card in the US eshop I set up my location to Canada, now my problem is that the promotinal code doesn't work in the Canadian eshop and if I enter it in the US eshop I wont be able to add funds to that account and I will be stuck with $30. My plan is to buy A Link Between Worlds with that money.

Is ther any workaround for this?

Change the region. I had the same problem.

Change the region to... US?

I used the Canada region, alberta! 

Yeah, me too, but I get that message

I'm sorry for the late reply but then you should change the region to US. Or maybe the console region. Try different settings!

If you speak portuguese ( you live in brazil, lol) try this. that's what I did.

EDIT: Forgot the link, lol!

http://forum.nintendoblast.com.br/t17422-tutorialwii-u-e-3dscompre-no-eshop-americano-sem-imposto

I had the same problem, change your location to any place in the U.S. Just keep in mind that you can only use the $30 when you are in the U.S eshop.

Change region to US and try to get eShop credit through other means if your credit card doesn't work on the eshop. I'm sure there are online shops that send eshop codes via e-mail.