Marsell Tillona Boot Black 9.5 10 *please see sizing notes!!! WORN ONCE love

Marsell Tillona square toe boot in black. GORGEOUS. I got these last winter and finally wore them ONCE this week only to realize they are too big for me and I am HEARTBROKEN. Marked size 39, which if you know Marsell they can run large. I am a US 9.5 with a narrow foot and a high arch - so I didnt notice it when I tried them on. The high arch fits fine, but the length and overall size is too large to be a 9.5. I think these are more like a 10 but can provide any additional measurements you need. They have been worn once to work, and are now packed snugly in their box ready to ship to a new home while I search for a smaller size. They are beautiful. AMA. Includes box and one dustbag.