Bad customer service

Vuyo the assistant manager at Mr Price Greenstone, would not accept my exchange of goods because I bought them at a different Mr price. I returned damaged shoes that I bought about a month ago, only wore them once and they broke and when I return them to Mr Price Greenstone Vuyo (assistant manager) tells me that I should return them where I bought them, he tells me the reason he cant take them is that its going to cause more work for him / the branch to take them back. (what happed to \for any defective merchandise that is returned within 120 days the normal refunds will apply). I would like to believe that Vuyo the Assistant manager underwent training before he was given this position. I have done exchanges with Mr Price and other leading retailers and have never heard of such nonsense. Maybe Mr Price greenstone should write "their\"" terms and conditions at the door because I see their Ts & Cs are not the same as the ones we read online and the back of the till slips. Please address this issue of people making up their own rules whenever it suits them. """