I applied to extend my study permit a couple of months ago; however due to postal service error the document got lost and for the reason that i have to leave Canada before getting my hand on the actual physical study permit. So i have to get my visa at the immigration office at the airport. Here is the problem, i was running late for my flight so when the agent gave me my new study permit i left immediately without checking it; now that i have time to check it, i notice that i only have one year of validity even though i applied to extend my permit for 4 years. I believe this must be a mistake but don't know what to do. Are there any ways for me to fix this?