Stuart Weitzman White Slingback Heels

Elegant white, leather, sling back pumps by Stuart Weitzman. I believe these are or are very similar to the Julia 75 pumps. Approx. 3in heel, very comfortable, just a bit too small for me (I’m more a true 12). Purchased in “very good” condition from and authenticated by The RealReal, tried on, but can’t return. Reasonable offers welcome!