Return policies

I bought 3 shorts for my son, it was to small and returned it, I took other 3 shorts bigger size, but again to small, when I wanted to return is for t-shirts(they do not refund money) they said you can only return once. Knowhere on shop walls or slips this is been said. Iam sitting with R400 shorts that no one can wear. Other places gives you 30 days to return and to take something else. I am very very angry. Humansdorp branch , Eastern Cape.