Ottawa asked me for a letter from my bank, even though I had more than enough in my account and the last 3 statements. Approved very quickly after that. Why not get that letter anyway? If you're in Canada right now just go to your bank and get it.
I'm in Toronto and applied through Ottawa. I had everything in order and after a week they asked for one more document: a letter from my bank showing that I had money in my account. The visa was then issued 2 days later. This happened 2 weeks ago.