如题，请教您。我现在等合适的国外offer，耽误了很多时间，想请教您Eb1a approval notice有过期一说吗？
我看到NVC给我的信中是这样写的，是不是我交完Immigrant Visa Processing Fee之后一年内必须办理好手续？
We received the Immigrant Visa Processing Fee payment(s) for this case.
If your visa petition is currently processing at the National Visa Center, do not let more than one year pass without contacting NVC. If a period of one year passes from the last date of contact (by telephone, mail, or e-mail) with NVC, all submitted fees and documents expire. If this occurs, the fees must be paid again and documents must be resubmitted in order to continue the immigration process.
