As far as i know...
1. Receiver General for Canada
2. No. The DD amount has to be CAD 980(490 for PA & 490 for spouse)
3. In my case, i took the DD from HSBC and it was written in the DD as "To, HSBC Bank Canada, 5th floor, 70 York Street, Toronto, Ontario M5J 189, Canada" payable at any branch...