regulation

Yesterday I went to the CubingUSA Northeast Championships. I use a GAN cube for my blindfold solves, which have a logo on the plastic, on the plastic, not a sticker. I complete my first solve just fine and DNF my second solves, I wait at the table for the next scramble, and a delegate approaches...

Ok guys =P, this might be a really dumb question but i dont really know how it works. So i have my first competition coming up this weekend, and im wondering about WCA registration. Im not sure which country i should register with, or even if there are any rules about it. I was born in romania...