EAD Lost by USPS?

Hi everyone, I have recently been going through an issue and would like some information about, from someone that has either gone through or have knowledge about. I applied for deferred action and everything got approved. USCIS website states that my Employment Authorization card has been delivered. On the USPS website, it states "Delivery status not updated" and has been like that since January 04, 2013. I called USPS countless times and even visited the post office, to which they told me that they can't find it. I called USPS just now one more time, and they gave me a SECOND case number and told me to wait for a call back. I called USCIS 2 days ago with this issue and asked them, worst case scenario, if it is lost in the mail what can I do? And the young lady informed me that if that is the case, I would have to apply for the card again and pay a fee, but told me to wait 30 days just in case the card comes in. I would like some advice on what I should do now. Thanks in advance for your advice and here is my USCIS receipt number so you can check for yourself about the issue: Number deleted

There's a thread already on this, I will look for it and paste it here. Also remove your eac number from here, you shouldn't share that number with anyone,

Okay, thank you. I removed the number

Here's the thread I was talking about http://dreamact.info/forum/showthread.php?t=36296
Feel free to add to it so that we can also know what happened to the OP of that thread.

Thanks I will post there