Markro carnival retuns manager with a bad attitude

Hi bought a Samsung J5 prime at makro carnival. I paid cash for the phone and used it for 5 months then it started to freeze and did not want to respond as it should. Then i returned the phone to makro. I said to the retuns manager i dont want the phone to be repair it should be a new phone with out any problems. We then came to a agreement that they will send to phone to samsung requesting a refund. 2 weeks later I phones makro to ask what was going on they said samsung is repairing the phone, i told them i want a refund, they then told me to go to makro and speak to the manager. I did as i was told. I spoke to Hendry Afolf. He was so rude, screaming and shouting infront of other customers in the shop. He told me it's not his problem i want my money back, he won't refund me i must wait for the phone. He then went on about me being stupid and laughs in my face. I waited 6 weeks to get the phone back. When i went to pick up the phone the manager was rude again. I toke the phone home. Treid to switch it on, nothing. Put it on charge, nothing. I phoned the next day, told them now the phone doesn't even want to go on and they told me to take back the phone. This morning I got there i told them the phone was sent in for repair and when i got it back it didn't work. They called the manager Hendry Adolf as i again requested a refund. When he got to the repair desk i told my wife I'm not talking to this manager again because he thinks i have no brains. The manager then immediately called another manager Siphiwe Sibeko. Told him that he must help us because i said he doesn't have brains! Like if you don't understand what i just said don't say what you thought i said. Again taking me on infront of other customers. Siphwe came and my wife explained to him what happend from the beginning. The lady who tested the phone saw it didn't want to charge or go on. The manager then tested the phone and it started charging and then went on. He told my wife it's working now she said oky it's fine but if it stops working again, (obviously there's something wrong if it didn't wanted to work just a few minutes ago and now it's working again) must she return it again, he said yes then they will send it in again and again it will take 6 weeks. She asked is that what's going to happen everytime he said yes because it can be a different problem everytime. He then said they will never refund us they will send the phone in everytime. I still can't believe the service i got from both these managers. I just wanted my money back so i can buy another phone.