Ordered a pair of shoes online as a gift, Women's ...

Ordered a pair of shoes online as a gift, Women's Stan Smith Size 5, and ASOS sent me a size 5 Men's and then proceeded to tell me over and over again how I received a size 5 Women's. Not admitting the mistake is annoying, but not annoying as charging over $25 in hidden COD fees, and $25 to return the item to their warehouse so that THEY can choose whether or not they made a mistake.

P.S. Your online size guides aren't wrong. If the shoes you send me are men's shoes instead of women's, the product is incorrect.