Return policy for shoes

I bought shoes at the Truworths in pretoria north. A week later i returned the shoes because they were too loose. On the 27 March i spoke to Nangezipho and she said they would take them and return to the factory so that they could be checked. They returned them saying there is nothing wrong with the shoes. I then requested that they give me a smaller size, but they refused. I spoke to Dylan on the 9 April explaining the whole story and he said he would get back to me, which he never did. I then called again on the 16 April and spoke to Amy, again i explained the story. She also said she would get back to me. That never happened as well.<br> I am not getting any joy from this as this was a small issue that could have been handled better. i fail to understand why they refuse to give me a smaller size. I read the return policy for shoes and it states that they will happily replace the shoes provided they are still in good condition within 3 months. I wore the shoes once and thats when i discovered the deffect. I fail to see why Truworths is failing to apply the policy rules in this regard. i refuse to pay for shoes that i will never wear. I insist on an exchange or my money back,