Adidas Pharrell Williams Superstar Shoes

Pharrell Williams Superstar Shoes (https://www.adidas.ca/en/pharrell-williams-superstar-shoes/FY1787.html) I ordered these shoes in US 7.5W/US 6.5M. However they run large and fit US 8W size. I couldn't return the shoes or exchange them because I was out of the country when they arrived and couldn't meet the 30-day return policy. I have never worn these sneakers. The tags are still on them. The original box and even the original wrap papers around the shoes is still there.