I bought the mystery box in a size medium and received a size petite, I reached out to them and they said this: “We apologize for your experience, however our surprise box is sent as described. The box is one item and if a customer wants more than one they can increase the quantity and receive more items just as all other products on the website. I apologize for the misunderstanding. The surprise box is a great way to try new styles at a discounted price, as some are up to 90% off. The items we send depend on our availability of stock and sizes. Unfortunately as the website states this is a final sale item that is not eligible for refund. We apologize for any inconvenience but hope you enjoy your new piece! Have a great day!”
TLDR: ordered a size medium mystery box order and received the wrong size, contacted company and was told that they are not responsible for providing accurate sizes for the customer and will not fix the issue.
Just wanted to warn others that they have unethical business practices.