I sent my first application to renew my Employment Authorization Doc on Jan 22nd. However I didn't receive Notice of Action till mid Feb. I called the customer service but they could not track down any new receipt # assigned to me. So I sent another application on Feb 18th. But on 19th I received a Notice of Action for the first application. And on 22nd, I received another Notice of Action with different receipt # for the second application. Should I just wait till one of them gets approved?