Bad review from Canada where I don't sell my product

Hi all,

Have any of you seen issues like this? I used to sell my products in Canada but due to some reasons I stopped selling in Canada more than a year ago and was only focused on the U.S market. I'm a brand owner.

I received a review from a customer buying in Canada today, from the review itself, I don't expect this order to be from a year back. My question is - how can it be possible that things like this could happen? If I'm not selling in Canada, how can people from Canada still buy my products and leave a review?