I followed the order tracking link supplied to me in my confirmation email.
On Monday it said "Order picked up...In Transit....At Processing..." etc...
On Tuesday afternoon it said "...Delivered Successfully!"...so I ran down to my local Chapters and it was waiting at their order desk for me.
If you opted for home delivery, well the processing (Canada post) might take a little longer for individual orders vs. store bulk orders...or Canada Post might be doing the whole trying to deliver 3 times thing and you don't know anything about it until you get the notice that you've missed them 3 times and now have to wait until the next day so that you can pick it up at Shoppers Drug Mart or whatever...
Sorry, I know that's not real helpful. I did however notice that my pre-order reciept said delivery may take 4-6 days after shipping. So you couldn't say you haven't been warned.