Club Factory — shoes are too small

I ordered 2 pairs of shoes from your company. I ordered a pair of women's casual canvas shoes and a pair of women's peking cloth dance shoes. They both arrived today. I just love them! But they are both 1 size too small. When i filled out my order, they showed a conversion chart to let me know what size they would be in the united states. I wear a size 9 and that's what i ordered. When i put them on, they were too tight on my feet. I have no idea where to send them or how to exchange them. I want the shoes, just in a bigger size.