Earlier quoted context omitted.
Xiaomi devices are not and never were certified for use in Canada.
Doesn’t usually result in the government requesting a stop-sale on eBay. Happened on newegg too: (Amp link because Reddit is actually down) https://www.google.com/amp/s/amp.reddit.com/r/Xiaomi/comment... Though you can still roam in Canada with them, so I don’t know how that works. Shouldn’t base stations reject uncertified device IMEIs? I guess it’s all okay as long as there’s revenue to be had.
I don't know of any devices at all that get rejected on Canadian ISPs. Blocking Xiaomis would cause a lot of issues.