Kickstarter only recognizes US, or "non-US" for shipping. This was something we were unaware of when defining the Rewards. At this time, we recommend a slight work around: when you are pledging, select US shipping. When the Kickstarter campaign is complete, we will ensure free shipping for our Canadian backers, with shipping addresses within Canada.
If you are ordering from outside the US (besides Canada) then the international shipping is listed in each Reward category.
If you pledged the wrong amount by mistake or assumed this would be added automatically (like many eCommerce sites) or were confused, that is ok. You can simply go to your account and click on "Manage Pledge" and adjust the pledge to the correct amount.
When you get to the Manage Pledge page. Type in the total pledge amount and make sure your reward is selected correctly below. That's it. You're done!