Oh that scares me... i just listed my port monnaie wallet, I really hope they don't remove it. I haven't had anything removed so far and i've sold quite a bit of LV *crosses fingers*
I have never seen an authentic LV handbag with an authenticity card unless you are talking about the little card that states the bag's style, etc.
Dior comes with cards. They have the date they were bought and the location stamped on the back. They come in a cute little envelope with care instructions as well. Sorry my phrasing wasn't so hot, I was PISSED when I posted and my brain wasn't working too swell.
But yes, some brands come with them, look into it before saying they don't exist