u/Kagros

I've recently starting buying things on Whatnot. On multiple occasions, I have seen WN say my next purchase will have free shipping, but after I make my purchase I am charged a shipping fee. I used to think this was related to winning giveaways and having it mess with shipping estimates, but it happened again in a stream where I did not win any giveaways. Is there a way to accurately view shipping costs, or do I have to take into account that I can't trust the shipping estimate in the bottom left corner? Thanks!