my post opt is expiring on July 15th . I applied for opt extension on May 15th . I graduated from san Jose but working in texas , hence applied for extension at USCIS Dallas Lock Box . So , if i dont happen to receive a card by July 15th , And if i continue working, will it be any problem by any case if my opt extension has problem? And also if my current company asks me for proof of employement and my opt extension card has not been received if i m under temporary suspension... is that going to be a problem?And also How do i track my application ? I do not have any case ID . So whats the best thing to do in this condition ? Any thing to expediate ? Or verify if my application is OK? My school is really not cooperative . Kindly guide me .