I just found out that Humble Bundle has a book bundle for Terry Pratchett’s Discworld. A 39 book bundle that is redeemed through Kobo.com.
Edit: Only available in the US.
https://www.humblebundle.com/books/terry-pratchetts-discworld-harpercollins-books
Could you use a vpn and buy it?
You could access the website, but I’m unclear on how the payment process works. Would canadian credit cards not be identifiable as being from Canada?