no i wasnt asked for remed they are still valid till jan including grace period of six months. i am india currently . i received email at 11:34 pm and cic account updated idk but about 10/11 pm
i uploaded an online generated pdf of my bank balance showing past 6 months statements. Now I feel relaxed hearing from you that no stamp is required. thank god
you can get sin at the airport on your arrival if services are open at the airport or you can get it anywhere outside. there are offices . as for pr card you will get it a month or two . some have received it in just a week so it cant be predicted.