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I tried ordering from the App, the first time it canceled my order and charged me an extra 6 cents. The second time I tried to reinstate my order, it charged me 6 cents twice for on reason…

On the website, it says that shipping to canada is free when the order is over $300. So when you make a purchase on the web, it automatically charges you for shipping fees.
On the app however, there is an option of free international shipping. I found this extremely confusing and annoying.

Anonymmx about Smoke Cartel - Online Headshop, v3.0.2