Hi, Good day! I have already received a request from cic for my original passport and have some questions. I am a non-US citizen with an H1B visa. My H1B visa stamp is in my old passport (which was already cancelled after renewal). I used my new passport number on the application form and provided all stamps from my old passport. Do I need to send both my old and new passport? I want to just send the new one to avoid confusion but I'm afraid they need to see my US visa stamp from my old passport. Also will there be a chance of refusal after passport request? I have the final decision as 'Your application was approved. You need to send us yiur valid passport to finalize you application.'