Undeliverable

On July 2, 2013, the post office returned the notice we last sent you on this case I765 APPLICATION FOR EMPLOYMENT AUTHORIZATION as undeliverable. This may have serious effects on processing this case. Please call 1-800-375-5283 to update your mailing address for this notice to be re-sent.

Did anyone else get this. Odd thing is I already have my EAD and my SS and just got my permit yesterday. It is odd I would receive the mail for these but not the others??

I was approved June 10th. Does USCIS require the approval letters to be signed for? I'm waiting for USCIS to call me back...

That is rather strange.I'm assuming it was an approval notice that USPS had sent back because somewhere along the line the address was printed wrong or the mailman doesn't know how to deliver the mail.

i had the same thing happen to me back in november. the letters or anything else does not need to be signed for. you will need to call USCIS and have them re-send the letters again.