firani1339: While I am in Canada and not the United States, I have successfully used prepaid VISAs to purchase from GOG in the past. As the support article suggests, not all prepaid cards support online/international transactions. You should confirm whether the card does before purchasing it.
You should also make sure to register your name and address to the card before using it for online purchases. Many online vendors check not only the card number and CVV, but whether the other information you provided matches, and will decline a transaction if it doesn't, or if no name/address is registered in the first place. There will usually be a link to where you can register the card printed on the back of the card, or sometimes in the paper packaging that comes with the card.
Well the card did say that you could register in case if it was lost or something like that