I haven’t heard back from them but did go back into the ordering site and entered both calendars.
The shipping price came up the same as when I ordered only the desk calendar…. $29.43. USD.
However, there is now a note on the page that says Canadian orders will have shipping by First Class, instead of Priority and we will be given a credit. There is no option to change the the method of shipping, so I’m not sure how we’d get the credit?