Guys I have a quick question. I am in process of sponsoring my wife from Pakistan. On March 18, 2012 she received a letter and a form from CHC Islamabad saying that her visa was ready for issuance but before that she'll have to provide a proper mailing address, family info, photos etc. but there was no specific instruction to submit the passport so she didn't send her passport. Later on April 24 she received a phone call from CHC Islamabad saying that she was supposed to mail passport along with that letter/form. she mailed passports on 26 April 2012. Haven't heard from CHC-Isb so far. Can anybody tell me how long do they keep passports for issuance of visa??? Appreciate your help. 