You can either email them or call directly. Calling will be immediate, however I emailed and got a call back within like 15 min tonight on a pr I saw for $157US
Shipping would be $35 with FedEx, and you are on the hook for taxes. Should be duty free as they are made in US
You provide your shipping and payment info over the phone, they take the order down and will only process the order once you send them an email at which point they will reply with the order confirmation.
All in should get you at around $300 for the above amount I was looking at if you plug in 1.36 exchange
For my most recent Shoe Bank purchase, I did everything over the phone (i.e. no email was required). In addition, I didn't pay anything at all when I picked up the order. I was expecting to pay HST, but didn't for some reason. Perhaps I just got lucky. End result was a pair of brand new AEs for well under $300 CAD all-in.