capetown-stylist.com Orthopedic Walking Shoes for Men advertised on Facebook

I ordered on-line and paid for an Orthopedic Walking Shoes for Men, size 10 shoes that was delivered. They delivered a size size 41 that is equivalent to a size 8. I have attempted to contact them via email so that the necessary arrangement may be made to exchange them for the size I ordered. Email requests have gone unanswered. Are they for real?