When I do the build and price on that website, it shows the black and tan interior on three of the pics and an all black interior on one of them.
This model is black and tan inside - that's just part of the package regardless of what the website shows. Were you to create a purchase order, it should also show something like "Interior: Black and Tan". If somehow it showed up differently, you'd have grounds to back out/refuse.
It does seem like they just haven't gotten their act together on the Canadian website though, because the US website definitely specifies Black Ultrasuade w/Tan leather.