I had sent application FORM I-131 to INS - Nebraska Service center with Cashier check (mailed on Nov 7th 2001) for my father but have not heard back anything from them till date. On the application I had mentioned that I will pick up the Re-entry permit from American Consulate in Delhi. Did not get any recpt from INS - Nebraska. I mailed the forms to the PO box mentioned on their website. Anybody knows if there is a delay in replying from INS to acknowledge receipts. I thought that process normally takes couple of weeks. The problem is my Dad is leaving on 2nd Dec. I don\'t know if this is going to have any impact because even though he applied before he left he did not receive the receipt from INS. Any help would be appreciated.