Poor quality/ worst customer service ever

I bought a Raleigh 29” MTB in December. The bicycle continually had a puncture. Yesterday I took it to our local bicycle shop and purchased a new tube. The owner informed me that regardless how many times I replace the tube it will not solve the issue as the tyre is faulty. We took the bicycle to Makro on Sunday and we had to wait for David who came with a big attitude. He started talking in his own language and when I asked him what the issue was he said he is waiting for a technician. When the technician came David continued talking in an African language completely ignoring us. In December we logged a complaint against David as well for having bad attitude with customers and nothing happened, clearly customer service is not a focus point for Makro. After the sales manager was called David continued with his bad attitude. When we eventually got back to the bicycle department we had to stand around and wait for someone to give us a replacement bicycle. Service is shocking !!!