K Jacques sandal size 37

Purchased on poshmark only to find out I need a size 38. These are very stylish and comfortable. These sale for over $300. The person I purchased from said they were worn only a few times. The dark brown color is so rich. Really wish they fit me so I could keep them. I am a true size 7 but these fit like a sz 6. Price is firm. Serious inquiries only.