Gola Harrier Misti Valeria + Liberty Art Fabric Women's Classic Sneaker

This shoe is too wide and large. Normally I buy 8,5 or 9 sized shoes, and 8 is small for me, so I bought this ones size 9, and they are slipping off. It is one size bigger than i need, the problem is not just in length, it is way wide too. I want to return them back.