I paid for a visa card but nothing received. I asked them about this but no answer.

There is other victims of this company:

http://www.dreamteammoney.com/index.php?showtopic=91498
"Attention:

3rcard a scam and I ordered a card and I received nothing more than the head does not respond when I sent an email to another box for a command he responded quickly, the cost of the card Fedex and $ 49 and it is impossible the actual price of shipping and $ 80 in addition to the site and the creation date in 2008 outside the domain name was created in 2009.

Never send money to that person."

P.S. This company is located in Commonwealth of Dominica, not Dominican Republic (this website don't have this country in the list - please fix it).
http://en.wikipedia.org/wiki/Dominica