BRAND NEW from ANTHROPOLOGIE NEVER WORN tags still on

I LOVE this Chemise from Anthropologie, I purchased it on sale as well as a bunch of other things for my wedding & honeymoon and this unfortunately does not fit the way I would like, I would probably fit a M better. Super cute for any occasion but especially bridal/honeymoon era. Technical color is ivory. Anthropologie would not let me return because it was on sale, no longer sold in stores.