Apple support refuse to provide service

I bought this iPhone 12 in mainland China in June. I was coming to Canada for University at the time, so I had second guess about if I should purchasing the AppleCare+ service. However, I called to the Apple support, I asked them will I be able to use the AppleCare+ service in Canada, and they gave me a positive answer, they assured me that when I am in Canada, I still will be able to use the AppleCare+ service which I register in China, that is why I made the purchased. Last Thursday, my iPhone 12 was damaged, I took it to the Apple Store Rideau, and they told me that they will not be able to had it fixed or replaced it, because my iPhone was purchased in China so they cannot repair or replace it. They told me to call apple support. I called apple support, actually multiple times, and they kept telling me that AppleCare+ service is only available in the originally purchased region, which contradict the saying that the agent assured me before I made the purchase. 

One of the agent told me I should go back to China to have it replaced, I feel absurd about this because he is asking me to travel internationally to exercise my AppleCare+, what is more, he even implied that I may have deliberately damaged the iPhone myself.

I feel cheated and mistreated by this experiences with Apple, and I wish there can be a solution.