Brooklin Pink MultiStriped Button Front Mini Dress

Just bought it from lulus.com and it is as exactly as advertised but I bought the wrong size (medium) which was too big on me and it was on final sale so couldn't return or exchange it. :( It still has the tag on and obviously never been worn. Rather than pay $30+ to get it altered, I figured I'd just sell it back if possible. It was $35 on sale (with taxes + shipping), and $56 original price. It's cute but just too big for me (I usually wear a size small or 4).