I gave the checkout a size XS, and the saleswoman changed my XS pants to a size S, which I didn't notice. As for the size they put in my bag that wasn't the one I wanted and tried on, I had to go back to the store two days later. I live far away and had to travel many kilometers to exchange the pants for my suit. Even though I still had the receipt, they refused to exchange it for my size. So, I ended up with a suit and pants that were the wrong size for 220 euros.