Hi, I send over a renew application of PR card in beginning of October, but I didn't use the mail tracking system so I don't know if CIC have received my mail yet. I'm worried because my card is going to expire soon, if my mail got lost on the way then i won't know until my card expires. So i wonder if the best thing to do is send another application with the same information in it, and track it this time. Thank you for answering!