returns of damaged goods

I went to Edgars Paarl this afternoon to return a item I bought in Sept 15. the supervisor told me that she could not return it for me. I bought a brazier in Sept 15 but I only start wearing it last month. The brazier is in a very good condition only for the thing that you use to adjust the strap of the brazier is broken. I only feel that that is not my fault, because now I have a brazier that I could not use and cannot return because I did not start wearing it earlier. everything else is in tack of the brazier except for that adjustable thing and that is bad quality and nothing to do with me. If it were a wear and tear thing than I would have understand. I cant even remember if I could see this policy in their store that you have to start wearing your items right away otherwise you cannot return it.