我父母剛收到綠卡， 但上麵有錯誤 - 卡號印成了收據號 （隨卡的信上附有卡號和收據號）。 父母綠卡都有錯。 我應該如何聯係USCIS更改錯誤。需要多長時間拿到新卡？ 是否付費？多謝回答。
-It does not matter and the receipt# is fine to shown on the green card. As long as the other information (e.g. A#, photo, name, birhtdate, gender/sex) is correct, the green card is fine. Not need to file I-90 to get the repalcement.
