Exchange denied

Hi my name is Hlengiwe on the 20th of September I bought takkies at Mamponya Mall for my son, he didn't like them. Then on the 2nd of May I went Jabulani Mall to exchange I was told that the system has change i must wait, I then went to do my shopping when I went back I was told that they couldn't help I must go exchange where I bought the shoes. So my query is "since when we only exchange where you bought from". After all the waiting. If Jabulani can't exchange why not get my money back because I don't have money to go to Mamponya