一般多久能收到EAD卡？急！请进内看我的案子进展情况，卡已经order.

On July 3, 2008, we ordered production of your new card. Please allow 30 days for your card to be mailed to you. If we need something from you we will contact you. If you move before you receive the card, call customer service. You can also receive automatic e-mail updates as we process your case. Just follow the link below to register.
一般真要要30天才拿到卡吗，我的现在工作许可马上半个月内就要到期了。