Refused to take returned dress

I bought a dress from Superbalist, I tried it and noticed that it not what I was looking for. I returned it back and they sent me email saying dress I returned it dirty. And I didn’t check the condition of it when I received it. Other thing when I bought the dress there was two dress was available even now although I bought one still two dress available for small size. And after I read other people comments about Superbalist they capable to sell dirty clothes to people