Vodacom ****

I bought a Samsung Z flip 6 from Vodacom on contract in April 2025. The phone has been for repairs 5 times already for the same problem. Even though I asked to change the phone I was advised by Vodacom that it is pass the pca date and that Samsung sells them repair phones so initially I was given a broken phone though my contract is for a new phone. I now have to send this in again as it has a new problem after receiving it just last week. I used it for 2 days. So now I learn I should never buy a Samsung because they sell broken phones as new. Vodacom refuse to replace this broken phone they sold me as new. Where is the customer protection plan as I have a contract for a new phone.