Bad experience I got at Totalsport Jabulani mall

I had a bad experience with totalsport I bought my mom tekkies at totalsport maponya mall the talkies were on sale and they didn't fit her I had to return them but when I get there I was told that I need to top money because I brought them on sale I find this not appropriate which means now I need to fit with takkies that are small because I'm told to top money totalsport at jabulani mall in Soweto. What a very bad experience I'm so disappointed with totalsport I had to come back with them I also had a slip this so disappointed which means if you buy something on sale you can't return it back