Nike refuse when I return the sneakers

I bought sneakers in atterbury in menlyn pretoria.<br> the sneakers where dirty when i bought them and i did not mind.<br> When i returned the sneakers they told be they can not take them back because they are dirty.<br> I did not mind taking them as dirty as they are because i liked them.<br> now that i return them for a smaller size they told me they can not take them back because they are dirty.<br> Nike is taking advantage of its customer and that has to stop now. <br> I will taking this to the media.<br> <br>