Faulty shoe

I purchased a loafer of R1650 a month ago and after wearing it once it ripped the top of the skin on my left foot off which took 3 weeks to heel. I then put it on again thinking it needs to be worn in and it started hurting me again. I checked it and discovered the left inside by the younger was much harder than the right and took it back to canal walk and showed the manageress and she acknowledged the problem but she did not hav my size an phoned waterfront and explained everything to them and told them I'm on my way to pick it up. Arriving at the store they gave me the shoe and ask me to fit it on and it was better than more comfortable than the 1 I had and it was a factory fault. Then the manager tells me that I can't get the shoe until he speaks to his regional manager and I asked him if he knows wat is CPA and answers yes. I was so disgustered with his and wat tops it off he knows that I'm a regular customer. Canal walk and waterfront has 1 owner but different rules so sad