Poor service regarding refunds

I’m very disgusted and disappointed about the service I received at the Alberton city store. I bought 3 Tshirts that were on special and they are small. Went there to exchange the stock is finished then I ask for my refund and they refuse they say their policy does not allow that. On the slip it’s written returns and refunds on 30days and original slip and items should not be worn , of which it’s what expected. I’m so tired of people making their own policies at companies at our expense as buyers . I’ve sent my sister in law that I had to give taxi fare since I’m working now I must return there again to go fight there myself for my own money that I ****** worked hard for. This is such a disgrace that in this day in time sores still have this stinking attitude. I want my money you don’t want me camping out at your shop cause I will do that believe you me.