Mr Price sports not assisting customer as needed.

I bought 2 dresses at Mr Price Sports. One for myself and one for my sister. We normally wear a size medium. But they were a big make. The size small was looking and fitting very loose on us. We took a size small. Wore it and it fits perfectly and even a bit loose on us which was nice. Lenght was perfect. After one was I want to Wear it today and fitting it on it was much shorter in lenght, the dress shrunk. I called Mr Price Sports to see if I can take it back. They cannot help me because I don't have my slip. So I told them this material shrunk and it seems to be a manufacturer issue. They still not willing to help me. Not happy with them considering this dresses were bought mid march. Not happy