For anyone who wants the short version of Canyon's answer, it was this: "Get fucked!"
I don't know about Canada laws, but in the US this is well covered by things like the warranty of merchantability. Basically the assumption that product purchased must do what it's intended or promised to do. You can't sell a car without an engine or other basic parts. And people tried, which prompted the laws. I'd be shocked if Canada didn't have such protections. A seller also cannot make their problem your problem. IE, they should be negotiating with UPS and "make you whole." Another US legal premise when someone is liable to you.
I would initiate a credit card chargeback. I've had to do this a few times for vendor issues. The cards will always side with the cardholder, in my experience, and force the vendor to prove they did their part. In this case, you have proof that they did not. In one case, I had to do a chargeback for a set of off road lights that had no wiring harnesses. The vendor simply said they had run out, and that I needed to just cut off the existing connectors and wire it myself. Umm... no! The card company rep was as perplexed as me, and commented something like "how do they think that's legal?" I had my FULL money back in a couple weeks and they told me to do whatever I want with the lights.