Renew EAD, No receipt after 52 days filing, What to do?

I filed my EAD Renewal application 52 days ago,but still no receipt received,no check cashed. I called USCIS, they put a service request but couldn't locate my application. What should I do? I think very likely they lost my application.

Thanks for any help

所有跟帖： 

• If I were you, -usedtobeadoctor- ♀ (54 bytes) () 02/09/2010 postreply 11:48:39

• 回复：Renew EAD, No receipt after 52 days filing, What to do? -OR131- ♀ (77 bytes) () 02/09/2010 postreply 23:43:49

• I have filed second application 2 weeks ago, still no check cash -beetle- ♂ (19 bytes) () 02/10/2010 postreply 08:15:43