Frank & Oak Button up Blouse-VNeck-Peplum Ruffle Hem/Sleeves-Size Small

Frank & Oak Button up Rust/Brick Colored Blouse-VNeck-Peplum Ruffle Hem/Sleeves-Size Small-3/4 sleeves Last two pics show style of blouse. Tag on blouse shows size Medium but measurements show Size Small. I initially bought this for myself because I am a size medium. I tried it on and I cannot do up the buttons. Fall,Autumn,Family Photos,