I have lost my PR card, so need to apply for replacement. In the application for replacement, there is a column to fill my PR card number, but I don't remember it. I, however, kept the letter sent with my PR card. On the A4 size hard letter paper that has my address and some general information of a permanent resident card, I see a set of the two upper-case alphabets and 10 digits number, starting with RF... right under a bar code at the upper left corner . Could this be my permanent resident card number? Please reply me with the answer if you know. Thank you.