NWT Faithfull the Brand Olympia midi dress M US 6 runs very small see size chart

New, never worn (just tried on) Faithfull the Brand Olympia Midi Dress in Rosemary Floral. The softest Ecovera fabric. Love how environmentally conscious this brand is but sizing is way small. Listed as M but Fits more like XS or S. See size chart here: https://faithfullthebrand.com/products/olympia-midi-dress-rosemary-floral-print Pet-free/ smoke-free home. NO OFFERS PLEASE for items under $100. Thanks for understanding.