It’s frustrating and stressful, yes I already contacted with my ex landlady, but its still not too secure way. Now some new tenants living there so since they send it with regular mail (not even signature required mail) if they throw away the envelope i have nothing to do with it. I don’t understand why IRCC doing this to immigrants and permanent residents , when citizens apply for passport they can collect it next business day or if they wish to get it mailed it never get lost never goes to wrong addresses. but when immigrants apply for some documents irrc cant print and send it for over one year. lame.That must be very frustrating, although not surprising - my card was sent to the wrong address (which is not even a real address) last June and that's why I'm still waiting for the replacement. Is there any way you can contact the people who live at your old address? That might be your best option